The high-temperature in-situ cell is designed for gas-solid in-situ XAFS experiments. Various high-temperature gas catalytic reactions such as Fischer-Tropsch synthesis at high temperatures can be carried out in an in-situ environment. The in-situ cell is equipped with a Kapton film window, which can be used in XAFS transmission mode; it is equipped with a heating resistor water cooling system and a control system to achieve a high temperature environment of up to 500°C.