diff --git a/utils/Quality_Relabel.py b/utils/Quality_Relabel.py
index 56896bf..9a83f5e 100644
--- a/utils/Quality_Relabel.py
+++ b/utils/Quality_Relabel.py
@@ -63,7 +63,7 @@ class Quality_Relabel:
     #      3      红色    阻塞型
     #      4      红色    混合型
     #      5      绿色    血氧饱和度下降
-    color_cycle = ["blue", "pink", "orange", "red", "grey", "green"]
+    color_cycle = ["black", "pink", "blue", "red", "grey", "green"]
     assert len(color_cycle) == len(base_event) + 1, "基础事件数量与颜色数量不一致"
 
     def __init__(self, all_path: List, sampNo: int, frequency: int = 100, bcg_frequency: int = 1000,