The utility model particularly relates to a control system of thermogravimetric analysis experimental apparatus based on labview, include: industrial computer, thermobalance, temperature controller and heating furnace, wherein, temperature controller's silicon controlled rectifier triggers output terminal and is connected with the silicon controlled rectifier power module that sets up in the heating furnace, temperature controller's thermocouple terminal and the thermocouple that sets up in the heating furnace are connected, the thermobalance is connected with the crucible that sets up in theheating furnace, include the sample, operation labview's industrial computer is connected with temperature controller, thermobalance respectively for receive temperature data, qualitative data, show with the form of wave form chart at the control interface of industrial computer, and set up the parameter of temperature controller and thermobalance at control interface. Unified integrated at the host computer with functions such as balance control, temperature control, data display and data record, easy operation is convenient, and has avoided being close to the heating furnace operation, has reduced the potential safety hazard.