Polyamide 6(PA6) foam composites were prepared by chemical foaming injection molding using glass fiber(GF), talc powder and glass GF/talc composite particles as reinforcement, respectively. The effects of glass fiber length and content, talc particle size and content, and glass fiber/talc composite particles on mechanical properties, rheological properties and foaming behavior of the composites were investigated. The results show that glass fibers can effectively improve the mechanical properties, heat resistance and rheological properties of the materials, enhancing its foaming ability. The glass fiber with the length of 3 mm is the most beneficial to improve the performance of the PA6/GF composites, but the density of composites is too large, which is not conducive to lightweight. Although talc powders have limited improvement on the properties of the composites, the density of tbe PA6/talc composites is relatively small, which is conducive to lightweight. The components of composite particle GF / talc can be complementary and synergistic, which overcome the shortcomings of single filler. Especially, when the mass ratio of PA6/GF/talc is 70/20/10, the composite material has high strength as well as lightweight showing good comprehensive performance.