Abstract: In order to ensure that the belt conveyor plays a greater role in coal mine production, DSJ65/20/2×30 belt conveyor is selected as the research object, and the fatigue characteristics of the coal mine belt conveyor head frame are analyzed, and the head frame structure is optimized and designed. According to research, the performance of the conveyor head frame is good, and its strength, stiffness, and fatigue life meet the requirements of mechanical equipment. Therefore, the head frame should be designed to be lightweight. The optimized design of the headstock resulted in the following solution: the total height of the column was reduced from 900 mm to 866 mm, and the distance from the connection between the diagonal rod and the column to the ground was reduced from 550 mm to 542.5 mm; The horizontal bar of the bracket has been changed from 720 mm×720 mm to 700 mm×750 mm, and the diameter of the column has been reduced from 32 mm to 30 mm. Through simulation analysis and industrial experiments, it can be found that the optimization scheme is good. While reducing the weight of the head frame, it basically does not affect the performance of the head frame, so that the entire conveyor can still operate safely and stably.