By experiment the micromechanical change of glauberite during its solving was investigated.After analyzing the results of experiment some conclusions were drawn out.In the dissolution process of glauberite both dissolution and crystallization take place at the same time.Solution seeps in along fissures,the dissolution of glauberite happens in cracks at first and some open space forms,then solution expands around the formed space.The remains of glauberite body after dissolution can be looked as pore-medium,and its seepage and mechanical characteristics are variety during solution.The flow of solution in glauberite can be looked as a seepage in pore-medium in the solving process.The process of solute’s convection can be looked as solute’s diffusion in water.