The invention discloses a modified structure of a polishing epoxy plate, which comprises an epoxy plate body. The epoxy plate body is arranged between an upper disc and a lower disc on polishing equipment, a plurality of cavities used for fixing products to be polished are arranged on the epoxy plate body, and at least one outwards extending cavity groove which expands outwards is arranged on the wall of each cavity. The cavities on the epoxy plate are improved, namely the outwards extending cavity grooves are arranged on the cavities of the epoxy plate, accordingly, workers take and place the products during operation conveniently, the cavities of the epoxy plate can be more effectively prevented from being collided with cavities of the products during polishing, rejected products are reduced, and yield of the products is increased. In addition, when products such as glass and the like are polished, effects that the products can be taken and placed conveniently, straight bodies of the products cannot become uneven due to the fact that the products are collided with the cavities of the epoxy plate during polishing by the aid of the modified structure. Besides, the modified structure is simple and reasonable in structure and is worthy of popularization and use.