The invention provides a fully-automatic dipping-free coating brush. The fully-automatic dipping-free coating brush is constituted by a coating cart, a coating handle and a coating driving system; thecoating driving system is composed of a coating pump and a control circuit, and one end of the coating pump is provided with a flexible pipe which is connected with the coating handle; a rolling brush head is arranged at the end of the coating handle and internally provided with a guiding rod, and the coating cart is constituted by a coating tank, idler wheels and a cart body; a flow adjusting rotary knob is arranged on the inner wall of the coating tank, and the control circuit is arranged in the coating tank; and a wireless receiving module is further arranged on the control circuit. Through a handle remote control button, the coating pump in the fully-automatic dipping-free coating brush is started or stopped to automatic convey coating to the rolling brush, a worker does not to manually dip the coating, the flow can be adjusted in the supplying process, the situation that the coating drips onto the ground or the body of the worker is avoided, the rolling brush can be exchanged tobe provided with a hard brush body or a soft brush body and is suitable for brushing of various new and old wall surfaces, fully-automatic rolling can be realized, and through the rolling brushing fully-automatic dipping-free coating brush, the problem of labor waste during wall brushing by the worker is solved.