The invention provides buffer type chemical stirring equipment with a self-cleaning device. The equipment comprises a buffer device, a stirring barrel, a first stirring device, a partition plate with a hole, a second stirring device, a second servo motor, a first servo motor, an upper top plate, a lower bottom plate, an extension spring, a pressed spring, a self-cleaning device and a housing. The buffer device is fixedly welded to the bottom end of the stirring barrel and is composed of the upper top plate, a fixed rod, a movable rod, the lower bottom plate, the extension spring and the pressed spring; the self-cleaning device is fixedly arranged at the top end of the stirring barrel and is composed of a third servo motor, a first gear, a housing, a water pipe, a second gear and a spherical nozzle. The equipment provided by the invention is reasonable in structural design, and the buffer device can alleviate mechanical shock so as to reduce wear of mechanical parts; the third servo motor rotates to drive the first gear to move, the first gear is engaged to the second gear, and the second gear rotates to drive the water pipe to rotate so as to further drive the spherical nozzle to spray and self-clean the device.