Aiming at disadvantages of traditional PC platform monitoring system, such as high system cost, low calculating ability, simple functions, large size, complex operation, and limited usages range, design and implement an intelligent digital control system taking TI company is DM3730 as core. System uses a modular design, a Linux operating system, expansion of a variety of display outputs, configured with CMOS image sensors, Gigabit Ethernet interface module for automatic analysis of video streaming, motion detection, identification, tracking and early warning threat targets, and use Ethernet video compression and transmission. It has the advantages of low cost, high reliability, low false alarm rate.