Stand column dynamic test device

The utility model discloses a stand column dynamic test device. The test device comprises a frame. A mobile beam and an external load oil cylinder. After a stand column is supported tightly, one end of the stand column is connected with the mobile beam and the other end of the stand column is connected with the external load oil cylinder. A column head tool is arranged on the mobile beam. An upper column recess is arranged on the column head tool. A lower column recess is arranged at the end part of the external load oil cylinder. The upper end and the lower end of the stand column are connected with the upper column recess and the lower column recess through bulbs. The stand column dynamic test device imitates an operating principle of a hydraulic support stand column for a coal mine, can carry out dynamic tests of a stand column under internal and external loading conditions when a laboratory simulates underground practical working states, verifies the intensity and the design life of the stand column, and can be applied in a high-pressure environment of an underground coal mine.