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This paper designs an interior monitoring system based on ZigBee. The system adopts CC2530 wireless receives & sends chip and sensor to construct interior local area network including perception layer, network layer and application layer. Transfer protocol adopts ZigBee. Perception layer includes temperature, humidity, and light, camera data collecting. Network layer includes ZigBee wireless network and data is converged to gateway. Network topology is star network. The realization of hardware and software is presented, including terminal node design, network construction and software realization, etc. Experiments were accomplished in the indoor with 6 m length and 3 m width. Temperature sensors were tested by changing circumstance temperature reaches 10 degrees below or above the room temperature. Optic sensors were tested by changing sunlight intensity. The definition and range of cameras were tested when people entered or left the exam area. Tests indicate the system can stably run and PC can display sensor variation with the circumstances.