Abstract: Greenhouse is an important facility for achieving high-quality and high-efficiency production of crops.To a certain extent，it can overcome constraints that traditional agriculture can hardly solve，eliminate unfavorable environmental conditions for crop growth，and make it partly or completely free from external climatic conditions and soil factors，and achieve goal of high yield，high quality，high efficiency and factory production.One of the hallmarks of advanced greenhouse production system is that it can control greenhouse production process based on greenhouse environment control system，and construct a suitable growth environment for crop growth to increase yield and improve quality.The performance of greenhouse production process depends on control algorithm.Based on retrieval of Chinese and foreign documents，current types of control algorithms，existing problems，improvement measures，and future development trends were introduced.