Abstract: The application background and current situation of the plastics inspecting chambers were introduced. A novel for inspection chambers was developed. Compared with conventional materials, the melt flow rate, notched impact strength and bonding modulus the special material increased from 4~6 g/10 min to 6~10 g/10 min, 6 to 8~24 kJ/m2, 2.0 to 4.5~6.0 GPa, respectively. Using this material，the strength and toughness of the inspecting chamber increased，while its cost decreased.