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Most traditional greenhouse control systems simply collect environment parameters, such as air temperature and humidity, and they lack long-term assessment and effective feedback mechanism. Therefore, an adaptive control method of flower greenhouse based on wireless sensor network is proposed and a hardware and software system combining sensing, decision-making and feedback is implemented in this paper. The sensor nodes, transmission gateway and a control instruction set are designed based on Zigbee modules. Sensor nodes can be flexibly arranged and can achieve real-time and reliable data transmission. Middleware system can receive the sensor data and send control instructions. The state and parameters of flowers, greenhouse and equipment can be checked in real time on the upper application management software. According to the performance results, this system can collect temperature and humidity of greenhouse flower in real time and control the growth environment of flowers precisely using middleware software and expert rules, resulting in reducing the costs of cultivating greenhouse flowers and improving success rate of breeding the high-grade flowers.