In allusion to the backward state of technology and applications of modified atmosphere packaging (MAP) in our country, an intelligent MAP system based on reliable measurement and control of gas concentration in packaging was constructed, which included Mix9001 gas mixer, CMV-2 gas analyzer, DQB-700N vacuum packaging machine, and PLC controller, to realize gases blending proportion in container and gas-filled package. The experiment results showed that this system not only obviates the traditional vacuum chamber, but also reduces gas consumption and improves working efficiency with automatic gases blending proportion and gas-filled package.