This article presents a study on the simulation of gas fracturing in reservoirs using a coupled thermo-hydro-mechanical-damage model. The research aims to understand how temperature fields affect the efficiency of gas fracturing technology, which is crucial for enhancing rock permeability and improving shale gas extraction. The study employs numerical simulations to model the extraction of shale gas under different temperature conditions using gas fracturing techniques. The simulations monitor the mechanical characteristics of rocks during the fracturing process, both before and after the application of a temperature field. The results show that gas fracturing significantly improves rock permeability, and temperature plays a critical role in the effectiveness of the process. Appropriate high temperatures can enhance the fracturing effect, leading to higher shale gas production efficiency. Conversely, low temperatures reduce the fracturing effect, resulting in lower extraction efficiency. The temperature distribution is crucial in influencing the outcomes of gas fracturing. The study also highlights the impact of rock parameters on gas extraction efficiency, emphasizing the importance of selecting suitable parameters to enhance shale gas recovery. The research establishes a thermal-fluid-solid-damage coupled model using COMSOL Multiphysics 6.0 to simulate the effects of temperature on gas fracturing. The model considers the behavior of shale gas as a fluid, following Darcy's law, and sets boundary conditions around the unit cell. The simulations demonstrate that gas fracturing can increase permeability and reduce the mechanical strength of the rock, leading to more fractures and improved gas extraction. The study also investigates the impact of various parameters, such as rock permeability, gas density, and temperature, on the efficiency of gas extraction. The findings indicate that higher temperatures and appropriate rock parameters can enhance gas fracturing efficiency and improve shale gas extraction. The research contributes to the understanding of gas fracturing technology and its application in engineering practices, emphasizing the importance of considering temperature effects in the design and implementation of fracturing processes.This article presents a study on the simulation of gas fracturing in reservoirs using a coupled thermo-hydro-mechanical-damage model. The research aims to understand how temperature fields affect the efficiency of gas fracturing technology, which is crucial for enhancing rock permeability and improving shale gas extraction. The study employs numerical simulations to model the extraction of shale gas under different temperature conditions using gas fracturing techniques. The simulations monitor the mechanical characteristics of rocks during the fracturing process, both before and after the application of a temperature field. The results show that gas fracturing significantly improves rock permeability, and temperature plays a critical role in the effectiveness of the process. Appropriate high temperatures can enhance the fracturing effect, leading to higher shale gas production efficiency. Conversely, low temperatures reduce the fracturing effect, resulting in lower extraction efficiency. The temperature distribution is crucial in influencing the outcomes of gas fracturing. The study also highlights the impact of rock parameters on gas extraction efficiency, emphasizing the importance of selecting suitable parameters to enhance shale gas recovery. The research establishes a thermal-fluid-solid-damage coupled model using COMSOL Multiphysics 6.0 to simulate the effects of temperature on gas fracturing. The model considers the behavior of shale gas as a fluid, following Darcy's law, and sets boundary conditions around the unit cell. The simulations demonstrate that gas fracturing can increase permeability and reduce the mechanical strength of the rock, leading to more fractures and improved gas extraction. The study also investigates the impact of various parameters, such as rock permeability, gas density, and temperature, on the efficiency of gas extraction. The findings indicate that higher temperatures and appropriate rock parameters can enhance gas fracturing efficiency and improve shale gas extraction. The research contributes to the understanding of gas fracturing technology and its application in engineering practices, emphasizing the importance of considering temperature effects in the design and implementation of fracturing processes.