Based on summarizing and analysis of the main deformation destructive factors of surroundrocks of roadways in the condition of thick coal roof,the tests of coal-rock sample collection andspecific pressure in floor are conducted.The geometric and mechanical parameter of roadway’s coal-rock was obtained.Selecting the classification index of surround rock’s stability,the reasonablevalue was determined.The fuzzy comprehensive evaluation is used to evaluate the stability category ofsurround rock.According to the result of evaluation,the selection orientation of support parameterswas determined.And then the reasonable support scheme was designed.The results of industrial testfield show that the controlling effect of roadway’s surround rock is excellent.