The invention provides a material pressing structure of a flat head machine. The material pressing structure effectively prevents materials from floating, guarantees normal feeding of the materials, and comprises a machine frame. The material pressing structure is characterized in that a feeding roller is arranged on the machine frame, the two ends of the machine frame are provided with sliding supports, one end of each sliding support is connected with an adjustment bolt, the other end of each sliding support is connected with a connection rod, the connection rods are connected with adjustment roller wheels, and the feeding roller is connected with the adjustment roller wheels in a winding mode through a plurality of springs.