Abstract: Aiming at the actual situation of a certain coal mine in Handan Hebei province, new ideas are put forward in comprehensive controlling gas: ① the distribution rules of coal mine gas are understood through similarity experiment, numerical simulation calculation and field test. ② changing the conception, the control and utilization should be considered simultaneously. ③ controlling gas with biological technology and divers methods, developing the meaning and extension of "Comprehensive", are of practical significance.