The invention relates to the technical field of PP foaming production equipment and in particular to a separable combination type PP foaming mold which comprises a mold body, wherein the mold body is composed of a first cooling plate, a second cooling plate, a first mouth template, a second mouth template, a supporting plate and a mold body, wherein the first cooling plate, the second cooling plate and the first mouth template are in fixed connection with one another through two underlying fixing bolts. According to the separable combination type PP foaming mold, the first cooling plate, the second cooling plate, the first mouth template, the second mouth template, the supporting plate and the mold body are fixedly connected with one another through the fixing bolts, through holes with core rods are formed in the first cooling plate, the second cooling plate, the first mouth template, the second mouth template, the supporting plate and the mold body, so that with design of large right and small left and utilization of concept of wood plastic materials, a PP material is convenient in foaming, the production difficulty is greatly lowered, and the production efficiency is greatly promoted.