ITO thin film thermocouple was designed and fabricated to measure the dynamic inner wall temperature in supersonic combustor. The sensor can tolerate the hostile environment and keep consistence by its high thermal stability. Key states, such as the ignition, combustion and extinction, were clearly characterized by the dynamic wall temperature during experiments. Additionally, the influence of different combustion conditions, such as the pressure and type of fuel, on dynamic wall temperature was quantitative evaluated. At last, the precisely heating rates of wall and ignition temperature during the supersonic combustion were measured for the first time.