diff --git a/AstroLib/Src/AsAttitudeParam_2023.cpp b/AstroLib/Src/AsAttitudeParam_2023.cpp
index cde58dbbbc41a02c4ca39882049ff9139585d0a2..8afc3cdbdb7e7c4f97a86ee4b2f80a6fdf1da4dd 100644
--- a/AstroLib/Src/AsAttitudeParam_2023.cpp
+++ b/AstroLib/Src/AsAttitudeParam_2023.cpp
@@ -761,7 +761,15 @@ void AsMtxToEuler212(const CMatrix<double>& mtx, CEuler& euler)
 	}
 }
 
-
+///***********************************************************************
+/// 根据坐标转移矩阵计算121转序欧拉角
+/// @Author	Wang Deyu
+/// @Date	2025.03.29
+/// @Input
+/// @Param	mtx     输入的转移矩阵
+/// @Output	
+/// @Param	euler	欧拉角    rad
+///***********************************************************************
 void AsMtxToEuler121(const CMatrix<double> &mtx,
 					 CEuler &euler)
 	CEuler &euler)