The invention discloses a kinetic analysis device of gas hydrate. The kinetic analysis device consists of a pressure-stabilized gas supply unit, a gas hydrate generation/decomposition unit, a kinetic analysis unit, a temperature control unit and a data acquisition and processing unit; moreover, the device carries out research on the generation/decomposition process of gas hydrate by means of resistance, torque, and the like, and refits gas phase chromatogram, thereby reducing sampling quantity of gas phase samples and avoiding variation in each phase caused by component reduction. The kinetic analysis device realizes kinetic analysis during gas hydrate generation/decomposition and ensures comprehensive, actual and accurate kinetic data result by means of resistance, torque, blender rotating speed and gas phase chromatogram, and the like. The device can be used in kinetic analysis of mixed gas hydrate generation/decomposition and kinetic analysis and experimental research of gas hydrate added with chemical reagents. Moreover, the method and the device are simple and have convenient operation.