The present disclosure provides an inverter air conditioner control device based on a thermolator, which includes: a first controller, and an input interface, an outdoor unit communicating interface and a detecting interface all connected with the first controller, and an indoor unit controlled by a second controller, wherein, the input interface is connected with the thermolator, receives a control signal sent by the thermolator; the detecting interface is connected with a temperature detector, receives an indoor temperature signal; the first controller connects with a inverter air conditioner outdoor unit, controls an operation of the inverter air conditioner outdoor unit; the first controller sets a target reference temperature which is used for adjusting an operation frequency of a compressor of the inverter air conditioner outdoor unit. The present disclosure also provides a terminal, an inverter air conditioner control system and control method based on the thermolator.