The invention relates to the field of stress corrosion measurement, in particular to a high-temperature axial loading stress corrosion test device, and solves problems of complex steps during sample clamping as well as easy leakage and overquick boiling of a solution under a stress application condition. The device comprises a load applying system and a temperature control system, and is mainly provided with a set of counterforce frames made of hastelloy, a beaker, a stainless steel heating coil, a thermocouple closed by polytetrafluoroethylene, a temperature controller, a controllable silicon trigger, a condensation reflux pipe and a rubber plug. The device is simple and convenient to operate, can load not only a rod-like sample but also a plate-like sample, can accurately control a heating temperature and a boiling temperature of the solution and an applied load, and is easy for observing a stress corrosion state of the sample in real time. The device is relatively small in overall size and suitable for popularization and use in labs, and can be widely applied to the fields of large-scale industrial production, detection analysis and the like of steel and iron, non-ferrous metal and the like.