The micro-movement auxiliary assembly for the stroke adjustment of the sliding seat in the operation of the screen printing machine includes a body (1), on which a fixed-point reference module (2), a displacement sensing module (3), a contact sensing module (4), and a management module are set (5), during operation, the fixed-point reference module (2) is set at the initial position of the sliding seat, the displacement sensing module (3) is set on the sliding seat part, the contact sensing module (4) is set on the pedal part, and the management module ( 5) Process comprehensive information; set an azimuth sensing module (6) on the displacement sensing module (3), and sense the sliding seat movement in up, down, left, and right directions in real time; set an information receiving module (7) on the contact sensing module (4), when When the displacement is abnormal, check whether the contact of the pedal parts is normal; set a prompt module (8) on the management module (5); and control the travel distance and direction of the sliding seat of the fuselage to avoid affecting the operation effect and make the operation smooth.