The utility model relates to a multiple dimensioned simulation test test platform for simulating colliery overlying strata collapse and, including platform base, first curb plate, second curb plate with go up the roof, first curb plate fixed connection is in one side of platform base, is equipped with a plurality of evenly distributed's first horizontal pressure head on the first curb plate, second curb plate sliding connection one side relative with first curb plate on the platform base is equipped with a plurality of evenly distributed's the horizontal pressure head of second on the second curb plate, go up the roof cover and establish the outside at first curb plate and second curb plate, upward be equipped with a plurality of evenly distributed's vertical pressure head on the roof. The utility model discloses a design of multiple dimensioned simulation test test platform has first curb plate and the second curb plate that installs horizontal loading pressure head additional to can realize that the test platform left and right sides is seamless, can establish similar model with granular material such as sand and soil with this, in addition the utility model discloses a second curb plate can horizontal slip, go up the roof can slide perpendicularly to this can realize multiple dimensioned similar modelling.