Abstract: A self-developed experimental system for high-temperature source-induced flammable gas explosion was used to simulate methane explosion induced by high-temperature source. Similarities and differences of methane explosion characteristic parameters between high-temperature source induction mode and electric spark induction mode were compared. The results show that methane explosion limit range under high-temperature source induction mode is 5.5%-14.5%, and that under electric spark induction mode is 5%-15.5%. It is more difficult for high-temperature source to detonate methane at explosion limit boundary. The methane explosion induced by electric spark has a more obvious temperature gradient than that induced by high-temperature source. The maximum explosion pressure of methane explosion induced by temperature source is higher than that induced by electric spark at different methane concentration. Methane concentration of the maximum explosion pressure under high-temperature source induction mode is 14.5%, while that under electric spark induction mode is 9.5% and 14.5%. Pressure boosting time of methane explosion induced by high-temperature source is larger than that induced by electric spark at each methane concentration.