A wheel-self-balanced type curb paver comprises a horizontal frame. A left hydraulic lifting support leg and a right hydraulic lifting support leg are vertically arranged on the rear side of the frame. A middle hydraulic lifting support leg is vertically arranged in the middle of the front side of the frame. Each of the lower end of the left hydraulic lifting support leg and the lower end of the right hydraulic lifting support leg is provided with a balancing east-to-adjust wheel assembly. The lower end of the middle hydraulic lifting support leg is provided with a crawler support. A support crawler wheel is hinged to the crawler support and driven through a crawler hydraulic motor. A control box, a material box and a power box are sequentially on the frame from back to front. A curb forming mold located on the outer side of the frame is connected to one side of the material box. An engine and a hydraulic pump are arranged in the power box. The wheel-self-balanced type curb paver has the advantages that the paver performs on-site casting on a construction site, and the whole curb paving process is completed in one step; the paver is fast and convenient to mount and flexible in manual steering, the wheels can swing and be regulated according to the actual conditions of a road surface, and the paver can stably cross an obstacle.