In order to settle relative sensitivities of coal and gas outburst sensitive index Δh₂ and K₁ in Tongshun Mine, based on high pressure adsorption desorption experiments and simulation of the index of drill cuttings, the study showed that there was a power function relationship between coal sample gas desorption quantity and adsorption equilibrium pressure, the first min gas desorption quantity affected by adsorption equilibrium pressure control function was more obvious than the 4~5 min in Tongshun Mine. The data measured on the site showed that drilling cuttings indicator △h₂ was more sensitive than K₁.