diff --git a/src/gui/panels/step5_clean_panel.py b/src/gui/panels/step5_clean_panel.py
index a9e4de8..72be031 100644
--- a/src/gui/panels/step5_clean_panel.py
+++ b/src/gui/panels/step5_clean_panel.py
@@ -76,7 +76,7 @@ class Step5CleanPanel(QWidget):
             "输出处理后CSV:",
             "CSV Files (*.csv);;All Files (*.*)"
         )
-        self.output_file.line_edit.setPlaceholderText("cleaned_sampling_data.csv")
+        self.output_file.line_edit.setPlaceholderText("processed_data.csv")
         layout.addWidget(self.output_file)
 
         # 启用步骤
@@ -129,7 +129,7 @@ class Step5CleanPanel(QWidget):
         if self.work_dir:
             output_dir = os.path.join(self.work_dir, "5_Data_Cleaning")
             os.makedirs(output_dir, exist_ok=True)
-            default_output_path = os.path.join(output_dir, "cleaned_sampling_data.csv").replace('\\', '/')
+            default_output_path = os.path.join(output_dir, "processed_data.csv").replace('\\', '/')
             self.output_file.set_path(default_output_path)
         else:
             self.output_file.set_path("")
diff --git a/src/gui/water_quality_gui.py b/src/gui/water_quality_gui.py
index 7877033..bcb6513 100644
--- a/src/gui/water_quality_gui.py
+++ b/src/gui/water_quality_gui.py
@@ -1369,7 +1369,7 @@ class WaterQualityGUI(QMainWindow):
             'step2': "2_Glint_Detection/severe_glint_area.dat",
             'step3': "3_deglint/deglint_kutser.bsq",
             'step4_sampling': "4_sampling/sampling_spectra.csv",
-            'step5_clean': "5_Data_Cleaning/cleaned_sampling_data.csv",
+            'step5_clean': "5_Data_Cleaning/processed_data.csv",
             'step6_feature': "6_Spectral_Feature_Extraction/training_spectra.csv",
             'step7_index': "7_Water_Quality_Indices/training_spectra_indices.csv",
             'step8_ml_train': "8_Supervised_Model_Training/",