diff --git a/can_converter_gui.py b/can_converter_gui.py
index 797d495..e01d581 100644
--- a/can_converter_gui.py
+++ b/can_converter_gui.py
@@ -229,19 +229,67 @@ class CANBinToMDF:
                     # numpy 배열로 변환
                     samples = np.array(values_list)
                     timestamps = np.array(timestamps_list)
-                    
+
+                    # choices(named values) 시그널 처리:
+                    # cantools가 NamedSignalValue 객체로 디코딩 → 정수값으로 저장하고
+                    # TABX(ValueToText) conversion 테이블을 붙여 뷰어에서 텍스트로 표시
+                    conversion = None
+                    if samples.dtype == object:
+                        try:
+                            from cantools.database.namedsignalvalue import NamedSignalValue as NSV
+                            from asammdf.blocks import v4_blocks as v4b, v4_constants as v4c
+                            # 정수값 추출
+                            int_values = [
+                                v.value if isinstance(v, NSV) else int(v)
+                                for v in values_list
+                            ]
+                            samples = np.array(int_values, dtype=np.int64)
+
+                            # TABX(ValueToText) conversion 생성
+                            if signal_def.choices:
+                                choice_keys = sorted(signal_def.choices.keys())
+                                n = len(choice_keys)
+                                cc_kwargs = {
+                                    'conversion_type': v4c.CONVERSION_TYPE_TABX,
+                                    'val_param_nr': n,
+                                    'ref_param_nr': n + 1,
+                                }
+                                for i, k in enumerate(choice_keys):
+                                    cc_kwargs[f'val_{i}'] = float(k)
+                                    cc_kwargs[f'text_{i}'] = 0
+                                cc_kwargs['text_default'] = 0
+                                cc = v4b.ChannelConversion(**cc_kwargs)
+                                cc.referenced_blocks = {}
+                                for i, k in enumerate(choice_keys):
+                                    cc.referenced_blocks[f'text_{i}'] = str(signal_def.choices[k])
+                                cc.referenced_blocks['text_default'] = 'Unknown'
+                                conversion = cc
+                        except Exception:
+                            try:
+                                samples = np.array(values_list, dtype=np.float64)
+                            except Exception:
+                                print(f"⚠️ 시그널 값 변환 실패, 건너뜀 ({msg_name}.{signal_name})")
+                                continue
+
+                    # comment 설정
+                    comment = signal_def.comment or ''
+
                     # 최대 시간 추적
                     if len(timestamps) > 0:
                         total_time_max = max(total_time_max, timestamps[-1])
-                    
+
                     # Signal 객체 생성
-                    signal = Signal(
+                    signal_kwargs = dict(
                         samples=samples,
                         timestamps=timestamps,
                         name=f"{msg_name}.{signal_name}",
                         unit=signal_def.unit or '',
-                        comment=signal_def.comment or ''
+                        comment=comment
                     )
+                    if conversion is not None:
+                        signal_kwargs['conversion'] = conversion
+
+                    signal = Signal(**signal_kwargs)
                     
                     mdf.append(signal)
                     signal_count += 1
@@ -1373,4 +1421,4 @@ def main():
 
 
 if __name__ == "__main__":
-    main()
+    main()
\ No newline at end of file