diff --git a/__init__.py b/__init__.py
index 6ac7e2c..77e78ef 100644
--- a/__init__.py
+++ b/__init__.py
@@ -647,7 +647,7 @@ class MZ_HYDiTSimpleT2I:
                 "steps": ("INT", {"default": 20}),
                 "cfg": ("FLOAT", {"default": 8.0, "min": 0.0, "max": 100.0, "step": 0.1, "round": 0.01}),
                 "scheduler": ([
-                    "ddpm", "ddim", "dpmms",
+                    "ddpm", "ddim", "dpmms", "uni_pc"
                 ], {"default": "ddpm"}),
                 "prompt": ("STRING", {"default:": "", "dynamicPrompts": True, "multiline": True}),
                 "negative_prompt": ("STRING", {"default:": "", "dynamicPrompts": True, "multiline": True}),
diff --git a/mz_train_tools_core_HYDiT.py b/mz_train_tools_core_HYDiT.py
index 9ca0e6b..9a7ad80 100644
--- a/mz_train_tools_core_HYDiT.py
+++ b/mz_train_tools_core_HYDiT.py
@@ -852,11 +852,6 @@ def MZ_HYDiTSimpleT2I_call(args={}):
         print(f"add {HYDiT_tool_dir} to sys.path")
         sys.path.append(HYDiT_tool_dir)
 
-
-
-
-
-    
     from hydit.inference import SAMPLER_FACTORY, HUNYUAN_DIT_CONFIG, get_fill_resize_and_crop, get_2d_rotary_pos_embed
     from hydit.modules.text_encoder import MT5Embedder
     from hydit.utils.tools import set_seeds
@@ -864,6 +859,20 @@ def MZ_HYDiTSimpleT2I_call(args={}):
     from diffusers import schedulers, AutoencoderKL
     from transformers import BertModel, BertTokenizer
 
+    SAMPLER_FACTORY["uni_pc"] = {
+        'scheduler': 'UniPCMultistepScheduler',
+        'name': 'UniPCMultistepScheduler',
+        'kwargs': {
+            # 'beta_schedule': 'scaled_linear',
+            # 'beta_start': 0.00085,
+            # 'beta_end': 0.03,
+            # 'prediction_type': 'v_prediction',
+            # 'trained_betas': None,
+            # 'solver_order': 2,
+            # 'algorithm_type': 'dpmsolver++',
+        }
+    }
+
     width = args.get("width")
     height = args.get("height")