The invention relates to a solution composition method for removing gas with liquid nitrogen and a using method. A solution comprises, by weight, 34%-38% of acetic acid, 31%-36% of white spirit, 23%-29% of animal and vegetable oil, 5%-9% of yeast extract powder and 4%-7% cobalt carbonate, and the sum of the percentage by weight of all components is 100%. The concept of passive prevention and treatment in the prior art is thoroughly changed. The solution composition method and the using method belong to the scope of active prevention and treatment, the gas is fundamentally treated, namely the gas is treated when coal is not mined, drilling from the ground is carried out when mine construction is carried out, gas removing liquid enables coal seams to be capable of effectively resolving the gas of a coal mine under initial conditions, the concentration of the gas of the coal mine is reduced, the gas is treated to be within a safe scope, and the personal safety of mining workers is guaranteed.