Underground garage deceleration strip device with drainage function

The underground garage deceleration strip device with the drainage function comprises a water storage tank, a drainage deceleration strip, drainage holes, outer side plates, a base and a drainage pipe, the drainage deceleration strip is fixed to the water storage tank, the drainage holes are formed in the drainage deceleration strip, the outer side plates are arranged on the two sides of the water storage tank, the drainage pipe is arranged at the bottom of the water storage tank, and the water storage tank is erected on the base. The front half part, facing the underground parking garage, of the drainage deceleration strip is provided with the drainage holes, the rear half part of the drainage deceleration strip is completely sealed, drainage can be guaranteed under the condition that vehicle driving is not affected, and meanwhile the drainage deceleration strip plays a role of the deceleration strip. The device integrates the underground garage deceleration strip function and the drainage function, and the