This paper discusses the intelligent control system for home security. We first analyze the internal relationship between the system integration and functional architecture combining with the requirement of efficient and comfortable of the modern household system. To demonstrate the feasibility and simulate the system, a SCM is used as centre process chip and the GSM is adopted as wireless communication protocol. On this basis, we implement the system with infrared sensing angle less than 120 and effective distance of 5 meter. The system simulation results match very well with the expected requirement. This also means the system plays a role in improving the human living comfort.