Abstract: In order to study the effect of the amount of potassium fertilizer on wheat production,three treatments of potassium fertil‐izer were set up,which were 100 kg/hm~2,150 kg/hm~2and 200 kg/hm~2,respectively.The results showed that the grain number per panicle was 36.7,the maximum panicle number was 381.4×10~4panicles/hm~2the 1000-grain weight was 55.3 g and the yield was 7740.5 kg/hm~2when the application rate of potassium fertilizer was 150 kg/hm~2,the highest protein content was 12.55%,the highes wet gluten content was 27.32%,the highest water absorption rate was 58.16%when potassium fertilizer was applied at 100 kg/hm~2and the highest sedimentation value was 23.78 mL when potassium fertilizer was applied at 200 kg/hm~2.