The invention discloses a winding machine winding head structure for processing of polyester filament products. The winding machine winding head structure is mainly characterized in that an indexing motor is fixedly installed on a machine frame, a rotating disc is installed on an output shaft of the indexing motor, four second supporting columns are uniformly distributed on the front end surface of the rotating disc in the circumferential direction, a driving motor is installed on a shell, a friction roller is installed on an output shaft of the driving motor, moreover, the friction roller ispressed on chucks, a first supporting column is installed on the shell, moreover, a bearing is installed on the first supporting column, a groove roller is installed on the bearing on the first supporting column, a guide sleeve is installed in a mounting hole of the shell, moreover, the guide sleeve is installed on a guide column, the guide column is fixedly installed on the machine frame, an aircylinder is installed on the shell, and the tail end of a piston rod of the air cylinder is installed on the machine frame. According to the winding machine winding head structure, the structure is simple, the cost is low, through the four chucks, the working efficiency is improved, the pressure between the friction roller and the chucks is adjusted in real time by adopting an electric control proportional valve and a pressure sensor, so that the pressure is stable in the winding process, and winding forming is good, stable and reliable.