The utility model provides a false triaxial high pressure permeability test appearance belongs to geotechnical engineering technical field, its be applicable to solidify the NOT AND solidify the ground, very much be non - consolidation plasticity viscidity undisturbed sample the infiltration with strain salt capability test. The utility model discloses use undisturbed sample for experimental soil sample, utilize false triaxial principle, through establish flexible silica gel sleeve pipe at the undisturbed sample overcoat to establishing the porose sleeve that is used for supporting undisturbed sample at flexible silica gel sleeve pipe outside cover, exerting the confined pressure through the confined pressure pore pair undisturbed sample who offers at the lateral wall, when the confined pressure was greater than the axle load, high -pressure rivers were only inside through seepage on the composition surface rather than from undisturbed sample and sealing material from undisturbed sample, thereby reach sealed effect under the high pressure, going up the top cap and passing through screwed connection down between base and the lateral wall, can avoid undisturbed sample to load or the process of placing leads to the fact deformation. The utility model discloses simple structure can simulate the actual state of the moisture system in underground, has effectively solved high -pressure undisturbed sample infiltration capability test's problem.