The invention belongs to the technical field of manual assisting, and particularly relates to a pressing transmission structure. The structure comprises a pressure plate, a fixed plate, a transmissionrod set and a movable head; the pressure plate serves as a writing starting switch, after the pressure plate displaces, the transmission rod set enables the movable head to displace vertical to the test paper, a pen point of a writing pen is driven to make contact with the surface of the test paper, writing starting is finished, the structure is simple, through pressing, writing starting is achieved, the pressure plate displaces to push an inclined rod, the inclined rod pushes a quadrilateral structure formed by flat rods and vertical rods, displacement of the pressure plate is larger than the distance of moving of the flat rods, displacement of the pressure plate is reduced, and the problems that in the moving process, finger blocks touch the pressure plate, when the pressure plate floats, the pen point is prone to floating up and down to make contact with the test paper, and scratches are generated are solved.