diff --git a/Src/main.c b/Src/main.c
index b475d44..379b93b 100644
--- a/Src/main.c
+++ b/Src/main.c
@@ -120,7 +120,8 @@ main ()
       OLED_ShowNum (104, 2, ina226_current, 2, OLED_FONT_SIXTEEN,
                     OLED_LEFT_ROLL, OLED_CLS);
 
-      ina226_power = (int16_t)(INA226_ReadPower () * 100);
+      ina226_power
+          = (int16_t)((ina226_current / 10.0f) * (ina226_voltage / 10.0f));// 功率
       OLED_ShowNum (16, 4, ina226_power / 100, 2, OLED_FONT_SIXTEEN,
                     OLED_LEFT_ROLL, OLED_CLS);
       OLED_ShowNum (40, 4, ina226_power, 2, OLED_FONT_SIXTEEN, OLED_LEFT_ROLL,