The invention discloses a controllable fast-heating up thermobalance reacting furnace, comprising a high temperature furnace reaction unit, a balance weighting device, an air control device and an electronic control unit, wherein the high temperature furnace reaction unit uses two-section heating, the temperature of the furnace body is set, collected and transmitted by the electronic control device; and when in an experiment, the air control device adjusts the air atmosphere in the high temperature furnace reaction unit, a sample is rapidly placed in a constant temperature zone of the high temperature furnace reaction unit to realize rapid heating up by a balance lifting mechanism in the balance weighting device, and mass change of the sample is converted into electronic signals in real time to be transmitted to the electronic control device for continuous monitoring and storing. The invention has the characteristics of large controllable range of heating rate, large range of test sample amount and controllable reaction atmosphere, thus meeting the requirement of the thermobalance test research under various reaction conditions with different sample amounts and heating rate; and common measurement equipment can perform on-line air component analysis, thus being favor of disclosing the action mechanism and control strategy in the reaction process.