The invention provides a composite plastic paddle brush. The composite plastic paddle brush comprises a first brush body which includes a hair brushing part and a handle part, a second brush body which is provided with a mirror surface, and a connecting component, wherein the hair brushing part, one side of which is provided with brush teeth and the other side of which is provided with a cleaning brush made of silica gel, is arranged at the end part of the handle part, the connecting component comprises a plurality of clamp grooves and convex columns which are correspondingly arranged one by one, wherein the clamp grooves are respectively arranged on the hair brushing part and around the cleaning brush, the convex columns are respectively arranged on the second brush body and around the mirror surface; the composite plastic paddle brush has the advantages of reasonable structure design, multi-function combination and convenient use, low cost and the achievement of the multi-function combination use of a brush, a mirror and a cleaning brush, and further the paddle brush has the advantages that volume is saved, storage is convenient and the problem of messy goods is avoided through the first brush body and the second brush body can be combined by the connecting component after completing the usage.