A system, method and apparatus for controlling a smart device, a smart gateway and a storage medium, wherein the method includes: receiving first monitored data provided by a first sensor; determining a relation that the first monitored data and a preset target monitored numerical value satisfy; determining an action resource among a plurality of preset action resources that contains a triggering condition matching with the relation as a first action resource; extracting an execution instruction from the first action resource, and sending the execution instruction to a first smart device related to the first action resource; and according to the first monitored data, monitoring a first execution effect of the first smart device related to the first action resource, and according to the first execution effect, starting up a second smart device related to the first smart device or shutting down the first smart device.