Aluminum mold has two use functions, used for high pressure infusion of rapid prototyping and plastic injection molding products. In the high pressure infusion process, especially for DCPD products, the water and oil circuit mechanism of the aluminum mold is simpler than that of the injection mold, resulting in shorter processing time and lower cost. The aluminum mold can also be put on the injection molding machine again to produce various plastic finished products after doing high pressure infusion molding.