The advances of the greenhouse control system modes were discussed, and several typical greenhouse control system modes were introduced in this paper. The main problems restricting the application of the greenhouse control systems are their high cost and low intelligence due to the hardware topology frameworks of greenhouse control systems. The idea of distributed structure of greenhouse control mode based on CAN bus could decrease cost and also provide a valid way to solve its intelligent problem. At the same time, the development status in the future was given including internet-based control and management, fieldbus-based monitoring sensors and control actuators, and the standardization of control systems in greenhouse production.