diff --git a/src-tauri/Cargo.lock b/src-tauri/Cargo.lock
index 6caeaf9..2630a7a 100644
--- a/src-tauri/Cargo.lock
+++ b/src-tauri/Cargo.lock
@@ -109,6 +109,56 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "anstream"
+version = "0.6.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "43d5b281e737544384e969a5ccad3f1cdd24b48086a0fc1b2a5262a26b8f4f4a"
+dependencies = [
+ "anstyle",
+ "anstyle-parse",
+ "anstyle-query",
+ "anstyle-wincon",
+ "colorchoice",
+ "is_terminal_polyfill",
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle"
+version = "1.0.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5192cca8006f1fd4f7237516f40fa183bb07f8fbdfedaa0036de5ea9b0b45e78"
+
+[[package]]
+name = "anstyle-parse"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4e7644824f0aa2c7b9384579234ef10eb7efb6a0deb83f9630a49594dd9c15c2"
+dependencies = [
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle-query"
+version = "1.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "40c48f72fd53cd289104fc64099abca73db4166ad86ea0b4341abe65af83dadc"
+dependencies = [
+ "windows-sys 0.61.2",
+]
+
+[[package]]
+name = "anstyle-wincon"
+version = "3.0.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "291e6a250ff86cd4a820112fb8898808a366d8f9f58ce16d1f538353ad55747d"
+dependencies = [
+ "anstyle",
+ "once_cell_polyfill",
+ "windows-sys 0.61.2",
+]
+
 [[package]]
 name = "anyhow"
 version = "1.0.100"
@@ -432,6 +482,26 @@ version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "55248b47b0caf0546f7988906588779981c43bb1bc9d0c44087278f80cdb44ba"
 
+[[package]]
+name = "bincode"
+version = "2.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "36eaf5d7b090263e8150820482d5d93cd964a81e4019913c972f4edcc6edb740"
+dependencies = [
+ "bincode_derive",
+ "serde",
+ "unty",
+]
+
+[[package]]
+name = "bincode_derive"
+version = "2.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bf95709a440f45e986983918d0e8a1f30a9b1df04918fc828670606804ac3c09"
+dependencies = [
+ "virtue",
+]
+
 [[package]]
 name = "bindgen"
 version = "0.69.5"
@@ -705,6 +775,25 @@ dependencies = [
  "toml 0.9.8",
 ]
 
+[[package]]
+name = "cbindgen"
+version = "0.29.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "befbfd072a8e81c02f8c507aefce431fe5e7d051f83d48a23ffc9b9fe5a11799"
+dependencies = [
+ "clap",
+ "heck 0.5.0",
+ "indexmap 2.12.0",
+ "log",
+ "proc-macro2",
+ "quote",
+ "serde",
+ "serde_json",
+ "syn 2.0.108",
+ "tempfile",
+ "toml 0.9.8",
+]
+
 [[package]]
 name = "cc"
 version = "1.2.43"
@@ -788,6 +877,46 @@ dependencies = [
  "libloading 0.8.9",
 ]
 
+[[package]]
+name = "clap"
+version = "4.5.52"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa8120877db0e5c011242f96806ce3c94e0737ab8108532a76a3300a01db2ab8"
+dependencies = [
+ "clap_builder",
+ "clap_derive",
+]
+
+[[package]]
+name = "clap_builder"
+version = "4.5.52"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "02576b399397b659c26064fbc92a75fede9d18ffd5f80ca1cd74ddab167016e1"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "clap_lex",
+ "strsim",
+]
+
+[[package]]
+name = "clap_derive"
+version = "4.5.49"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2a0b5487afeab2deb2ff4e03a807ad1a03ac532ff5a2cee5d86884440c7f7671"
+dependencies = [
+ "heck 0.5.0",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.108",
+]
+
+[[package]]
+name = "clap_lex"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1d728cc89cf3aee9ff92b05e62b19ee65a02b5702cff7d5a377e32c6ae29d8d"
+
 [[package]]
 name = "clipboard-win"
 version = "5.4.1"
@@ -836,6 +965,12 @@ dependencies = [
  "objc",
 ]
 
+[[package]]
+name = "colorchoice"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b05b61dc5112cbb17e4b6cd61790d9845d13888356391624cbe7e41efeac1e75"
+
 [[package]]
 name = "combine"
 version = "4.6.7"
@@ -1704,6 +1839,38 @@ dependencies = [
  "log",
 ]
 
+[[package]]
+name = "ferrous-opencc"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e7604efd2d4d8ee72dcbf7b24b604d7a4c764dfab40152bbe12ae241f784560b"
+dependencies = [
+ "anyhow",
+ "bincode",
+ "cbindgen",
+ "clap",
+ "ferrous-opencc-compiler",
+ "fst",
+ "phf 0.11.3",
+ "phf_codegen 0.11.3",
+ "serde",
+ "serde_json",
+ "tempfile",
+ "thiserror 2.0.17",
+ "wasm-bindgen-test",
+]
+
+[[package]]
+name = "ferrous-opencc-compiler"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "161c89665fa27878bd14fa7adc2e392f4e17f6fe9d45d66d6e73585c70f3e4e0"
+dependencies = [
+ "anyhow",
+ "bincode",
+ "fst",
+]
+
 [[package]]
 name = "field-offset"
 version = "0.3.6"
@@ -1828,6 +1995,12 @@ version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42703706b716c37f96a77aea830392ad231f44c9e9a67872fa5548707e11b11c"
 
+[[package]]
+name = "fst"
+version = "0.4.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ab85b9b05e3978cc9a9cf8fea7f01b494e1a09ed3037e16ba39edc7a29eb61a"
+
 [[package]]
 name = "funty"
 version = "2.0.0"
@@ -2335,6 +2508,7 @@ dependencies = [
  "cpal",
  "enigo",
  "env_filter",
+ "ferrous-opencc",
  "flate2",
  "futures-util",
  "hound",
@@ -2903,6 +3077,12 @@ dependencies = [
  "once_cell",
 ]
 
+[[package]]
+name = "is_terminal_polyfill"
+version = "1.70.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a6cb138bb79a146c1bd460005623e142ef0181e3d0219cb493e02f7d08a35695"
+
 [[package]]
 name = "itertools"
 version = "0.12.1"
@@ -3278,6 +3458,16 @@ dependencies = [
  "unicase",
 ]
 
+[[package]]
+name = "minicov"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f27fe9f1cc3c22e1687f9446c2083c4c5fc7f0bcf1c7a86bdbded14985895b4b"
+dependencies = [
+ "cc",
+ "walkdir",
+]
+
 [[package]]
 name = "minimal-lexical"
 version = "0.2.1"
@@ -3922,6 +4112,12 @@ version = "1.21.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
 
+[[package]]
+name = "once_cell_polyfill"
+version = "1.70.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "384b8ab6d37215f3c5301a95a4accb5d64aa607f1fcb26a11b5303878451b4fe"
+
 [[package]]
 name = "open"
 version = "5.3.2"
@@ -7353,6 +7549,12 @@ version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8ecb6da28b8a351d773b68d5825ac39017e680750f980f3a1a85cd8dd28a47c1"
 
+[[package]]
+name = "unty"
+version = "0.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6d49784317cd0d1ee7ec5c716dd598ec5b4483ea832a2dced265471cc0f690ae"
+
 [[package]]
 name = "ureq"
 version = "3.1.2"
@@ -7426,6 +7628,12 @@ version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b6c140620e7ffbb22c2dee59cafe6084a59b5ffc27a8859a5f0d494b5d52b6be"
 
+[[package]]
+name = "utf8parse"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
+
 [[package]]
 name = "uuid"
 version = "1.18.1"
@@ -7473,6 +7681,12 @@ version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
 
+[[package]]
+name = "virtue"
+version = "0.0.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "051eb1abcf10076295e815102942cc58f9d5e3b4560e46e53c21e8ff6f3af7b1"
+
 [[package]]
 name = "vswhom"
 version = "0.1.0"
@@ -7611,6 +7825,30 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "wasm-bindgen-test"
+version = "0.3.54"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4e381134e148c1062f965a42ed1f5ee933eef2927c3f70d1812158f711d39865"
+dependencies = [
+ "js-sys",
+ "minicov",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "wasm-bindgen-test-macro",
+]
+
+[[package]]
+name = "wasm-bindgen-test-macro"
+version = "0.3.54"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b673bca3298fe582aeef8352330ecbad91849f85090805582400850f8270a2e8"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.108",
+]
+
 [[package]]
 name = "wasm-streams"
 version = "0.4.2"
diff --git a/src-tauri/Cargo.toml b/src-tauri/Cargo.toml
index 9ea5bbc..55e21c3 100644
--- a/src-tauri/Cargo.toml
+++ b/src-tauri/Cargo.toml
@@ -67,6 +67,7 @@ rusqlite = { version = "0.32.1", features = ["bundled"] }
 tar = "0.4.44"
 flate2 = "1.0"
 transcribe-rs = "0.1.4"
+ferrous-opencc = "0.2.3"
 
 [target.'cfg(unix)'.dependencies]
 signal-hook = "0.3"
diff --git a/src-tauri/src/actions.rs b/src-tauri/src/actions.rs
index d47dc84..41952d5 100644
--- a/src-tauri/src/actions.rs
+++ b/src-tauri/src/actions.rs
@@ -12,6 +12,7 @@ use async_openai::types::{
 };
 use log::{debug, error};
 use once_cell::sync::Lazy;
+use ferrous_opencc::{OpenCC, config::BuiltinConfig};
 use std::collections::HashMap;
 use std::sync::Arc;
 use std::time::Instant;
@@ -160,6 +161,47 @@ async fn maybe_post_process_transcription(
     }
 }
 
+async fn maybe_convert_chinese_variant(
+    settings: &AppSettings,
+    transcription: &str,
+) -> Option<String> {
+    // Check if language is set to Simplified or Traditional Chinese
+    let is_simplified = settings.selected_language == "zh-Hans";
+    let is_traditional = settings.selected_language == "zh-Hant";
+    
+    if !is_simplified && !is_traditional {
+        debug!("selected_language is not Simplified or Traditional Chinese; skipping translation");
+        return None;
+    }
+
+    debug!("Starting Chinese translation using OpenCC for language: {}", settings.selected_language);
+
+    // Use OpenCC to convert based on selected language
+    let config = if is_simplified {
+        // Convert Traditional Chinese to Simplified Chinese
+        BuiltinConfig::Tw2sp
+    } else {
+        // Convert Simplified Chinese to Traditional Chinese
+        BuiltinConfig::S2twp
+    };
+    
+    match OpenCC::from_config(config) {
+        Ok(converter) => {
+            let converted = converter.convert(transcription);
+            debug!(
+                "OpenCC translation completed. Input length: {}, Output length: {}",
+                transcription.len(),
+                converted.len()
+            );
+            Some(converted)
+        }
+        Err(e) => {
+            error!("Failed to initialize OpenCC converter: {}. Falling back to original transcription.", e);
+            None
+        }
+    }
+}
+
 impl ShortcutAction for TranscribeAction {
     fn start(&self, app: &AppHandle, binding_id: &str, _shortcut_str: &str) {
         let start_time = Instant::now();
@@ -273,7 +315,15 @@ impl ShortcutAction for TranscribeAction {
                             let mut post_processed_text: Option<String> = None;
                             let mut post_process_prompt: Option<String> = None;
 
-                            if let Some(processed_text) =
+                            // First, check if Chinese variant conversion is needed
+                            if let Some(converted_text) =
+                                maybe_convert_chinese_variant(&settings, &transcription).await
+                            {
+                                final_text = converted_text.clone();
+                                post_processed_text = Some(converted_text);
+                            }
+                            // Then apply regular post-processing if enabled
+                            else if let Some(processed_text) =
                                 maybe_post_process_transcription(&settings, &transcription).await
                             {
                                 final_text = processed_text.clone();
diff --git a/src-tauri/src/managers/transcription.rs b/src-tauri/src/managers/transcription.rs
index d87b88e..ad03368 100644
--- a/src-tauri/src/managers/transcription.rs
+++ b/src-tauri/src/managers/transcription.rs
@@ -349,12 +349,21 @@ impl TranscriptionManager {
 
             match engine {
                 LoadedEngine::Whisper(whisper_engine) => {
-                    let params = WhisperInferenceParams {
-                        language: if settings.selected_language == "auto" {
-                            None
+                    // Normalize language code for Whisper
+                    // Convert zh-Hans and zh-Hant to zh since Whisper uses ISO 639-1 codes
+                    let whisper_language = if settings.selected_language == "auto" {
+                        None
+                    } else {
+                        let normalized = if settings.selected_language == "zh-Hans" || settings.selected_language == "zh-Hant" {
+                            "zh".to_string()
                         } else {
-                            Some(settings.selected_language.clone())
-                        },
+                            settings.selected_language.clone()
+                        };
+                        Some(normalized)
+                    };
+                    
+                    let params = WhisperInferenceParams {
+                        language: whisper_language,
                         translate: settings.translate_to_english,
                         ..Default::default()
                     };
diff --git a/src/lib/constants/languages.ts b/src/lib/constants/languages.ts
index 42cbf65..ebcd22a 100644
--- a/src/lib/constants/languages.ts
+++ b/src/lib/constants/languages.ts
@@ -6,7 +6,8 @@ export interface Language {
 export const LANGUAGES: Language[] = [
   { value: "auto", label: "Auto Detect" },
   { value: "en", label: "English" },
-  { value: "zh", label: "Chinese" },
+  { value: "zh-Hans", label: "Simplified Chinese" },
+  { value: "zh-Hant", label: "Traditional Chinese" },
   { value: "de", label: "German" },
   { value: "es", label: "Spanish" },
   { value: "ru", label: "Russian" },