diff --git a/NineChess/src/graphicsconst.h b/NineChess/src/graphicsconst.h
index 3e5d5224..85615718 100644
--- a/NineChess/src/graphicsconst.h
+++ b/NineChess/src/graphicsconst.h
@@ -23,7 +23,7 @@
 #ifndef GRAPHICSCONST
 #define GRAPHICSCONST
 
-const short BOARD_SIZE = 600;     // 棋盘大小
+const short BOARD_SIZE = 500;     // 棋盘大小
 const short BOARD_MINISIZE = 150; // 最小宽高，即1/4大小
 const short PIECE_SIZE = 56;      // 棋子大小
 const short LINE_INTERVAL = 72;   // 线间距