To provide a composite molded article obtained by still more certainly and strongly bonding a resin molded article and a cement molded article and capable of simplifying execution work and shortening an execution period, and a method for manufacturing the same.

In the composite molded article 1 obtained by bonding the resin molded article 2 molded from a resin or a resin-containing resinous material and the cement molded article 3 molded from a cement-containing cementitious material, recessed parts 4, etc., are formed to one of the resin molded article 2 and the cement molded article 3 and projected parts 5, etc., fitted in the recessed parts 4, etc., are formed to the other one of them. The recessed parts 4, etc., and the projected parts 5, etc., are brought to a mutual contact state to form contact parts 6, etc., and 7, etc., for preventing the resin molded article 2 and the cement molded article 3 from being spaced apart from each other.