An intelligent terminal remote controller-based internet-of-things control system and control method are disclosed. The control system includes at least two household electrical appliance hosts (1) and an intelligent terminal (2), remote controller software is included in the intelligent terminal (2) and communicated with a model database (9) of the intelligent terminal (2), the model database (9) is configured to store model number information and information of all functions of various household electrical appliance hosts to be controlled, the household electrical appliance host (1) includes an MCU control chip (7) storing model number information of a current household electrical appliance host, and a control system unit (5). The present invention allows invoking a back-end database through software and making recognition and judgment among control subjects, so as to solve the problem that the remote-control functions are different for different electrical appliances of different models.