Abstract: For meeting the needs of informatization and automatic control terminal of greenhouse, an intelligent control system was developed based on ZigBee. JN5139-M01 Module made by Jennic Company was used as main unit. The whole system contained several wireless data collecting nodes, intelligent voice module, and a wireless intelligent control terminal. The wireless data collecting nodes based on ZigBee were distributed over the whole greenhouse and used to take charge of data collecting, preprocessing and wireless transmission. Wireless intelligent control terminal was used to collect data from all nodes and manage environmental factors of greenhouse, such as soil temperature, leave temperature, light intensity, growth speed of plant, and soil water content. Intelligent voice module could provide real-time production advice according to data collected from all wireless nodes. The test results showed that the wireless intelligent control terminal has been successfully used on monitoring and controlling environmental factors in greenhouse. Testing proved that the system run stably, and was easy to operate and to use.