Abrasive belt grinding experiments of glass fiber reinforced plastics composite material are carried out by using three different abrasive belts with different sizes,and the interaction principle between the abrasive and the workpiece is analyzed.The main factors of material removal rate and belt life of glass fiber reinforced plastics composite material are obtained through a large number of tests and test data.The extent and the main reason of belt plug are analyzed through the professional image analysis software (ImagePro Plus) for the first time.The results show that in the process of abrasive belt grinding,the material removal rate are affected by the factors for grinding pressure,belt speed,abrasive type and size,and the ceramic abrasive belt has the highest removal rate.The main factor for belt plug extent is grinding pressure.The most important wear form of abrasive belt is blunt,and the accumulation abrasive belt has the longest life,followed by ceramic abrasive belt.