As the most important mid-infrared source at present, Quantum Cascade Lasers(QCL) has become one of the research hotspots due to its unique performance and frequency that can be extended to terahertz(THz). For QCL, there are many factors affecting their output power and operating temperature, and efficient heat dissipation is an important factor. In this paper, the thermal management research of two kinds of QCL including mid-infrared and terahertz is summarized. Secondly, the similarities and differences between the two are discussed and analyzed. Two methods of heat dissipation on the solid side of lasers are mainly discussed, including active areas design, processes improvement, and the optimization of device material systems. Finally, the future research trends of thermal management of QCL are analyzed and predicted. This result has certain reference significance for the performance improvement of QCL, especially the improvement of output power and working temperature.