The invention provides a waterproof test device for a micro-special motor, which includes an upper fixing plate, a latch rod, an annular air bag, a lower fixing plate, an annular rubber ring, a connecting rod, an L-shaped sliding rod, a spring one, a base plate and a clamping ring. The lower end of the upper fixing plate is provided with a lower fixing plate, the upper end of the lower fixing plate is pasted with an annular air bag, the annular air bag is embedded in the lower end of the upper fixing plate, and the lower end of the lower fixing plate is provided with an annular rubber ring, and the annular rubber ring Installed on the connecting rod, the upper end of the connecting rod is set inside the upper fixing plate, the connecting rod is equipped with a latch rod, and the latch rod is assembled inside the upper fixing plate, this design improves the sealing effect, and the clamping An L-shaped sliding rod is fixed on the outer end of the ring, and the outer end of the L-shaped sliding rod is equipped with a spring one. This design improves the supporting effect. The present invention is easy to use, easy to operate, improves the sealing effect, and can prevent falling.