The invention discloses an intelligent control method and system for a greenhouse, and applicable to intelligent greenhouse environment control. The intelligent greenhouse control method comprises: detecting a current control mode of a greenhouse (101); if the greenhouse is currently in an automatic control mode, regulating and controlling the greenhouse according to a preset control model (102); if the greenhouse is currently in a non-automatic control mode, periodically measuring current greenhouse environment parameters (103); if the current environment parameters are within a preset threshold range, informing a user of the state of the greenhouse (104); and if the current environment parameters are not within the preset threshold range, switching the control mode of the greenhouse into the automatic control mode (105). With the the present intelligent greenhouse control method and system, intelligent control of the greenhouse environment can be achieved, greenhouse environment damage caused by human inter