The problems such as abrasion and scratch are often appeared on the side panel of hydraulic gear pumps during working,which seriously affects the service life and volumetric efficiency of gear pumps.In order to improve the wear resistance of soft metal copper surface of the double metal gear side panel,the mechanical machining process was improved for the side panel of gear pump,and a high molecular material formula with good wear resistance and lubrication performance was studied and coated on the surface of copper base by drying,sintering and quenching process.Test results show that the side panel coated with wearresistant coating can withstand the impact for more than 300 000 times,and its wear resistance performance is improved by 2 times.