The invention discloses an automatic spin dryer which includes a spin dryer inner barrel, a spin dryer machine frame, a spin drying barrel abutting-against device, a spin drying barrel base, an outershading barrel, returning stop iron, a power distribution operation panel, a liquid storage tank and tank cover. The automatic spin dryer is characterized in that the spin dryer machine frame is at the bottommost portion of the whole structure, the spin dryer inner barrel is disposed at the center of the inside of the outer shading barrel, the tank cover is disposed above the liquid storage tank,and the power distribution operation panel is disposed on the upper portion of the front of the liquid storage tank. The whole structure is supported through the spin dryer machine frame, the spin dryer inner barrel rotates by means of the centrifugal force principle, water flows out of a circular hole in the barrel wall by high-speed rotation, the rotation is stable, the efficiency is high, and the performance is good. The power utilization running conditions of the whole structure are controlled through the power distribution operation panel, and a working instruction can be sent out. Liquiddischarged after the spin dryer inner barrel rotates enters the liquid storage tank, and the tank cover is utilized to close or open the liquid storage tank. The automatic spin dryer further has theadvantages that the automatic spin dryer is low in manufacturing cost, firm and durable and the connection of each component is flexible.