The invention discloses a greenhouse roller blind control system and a working method of the greenhouse roller blind control system. The greenhouse roller blind control system comprises a roller blind controller, a non-contact reversing module, a roller blind machine upper connection rod, a roller blind machine lower connection rod, a hinge a, a hinge b, a roller blind machine, an angle sensor a, an angle sensor b, an upper dead center limiting switch and a lower dead center limiting switch. The working method includes the steps of initializing the state, expanding the heat preservation quilt and roller blind machine power-off protection process and unfolding the heat preservation quilt. The greenhouse blind control system and the working method of the greenhouse roller blind control system have the advantages that the actual operation state of the roller blind machine can be detected by the system, fault alarming can be achieved, executing mechanisms such as a motor, a speed reducer and the heat preservation quilt are protected, equipment damage caused by maloperation is reduced and avoided, automatic and remote adjusting of the greenhouse environment can be achieved, the dependence degree on workers can be accurately and obviously reduced in time, management and operation cost is reduced, and the operation safety and the economic benefits of facility cultivation are effectively improved.