The utility model discloses a hydraulic support movable column. The hydraulic support movable column comprises a plunger, a column head and a column pipe. The column pipe comprises a column pipe body portion and column pipe through holes communicating the two ends of the column pipe body portion. The end, connected with the column pipe, of the plunger is provided with a plunger connecting end, the plunger extends in the radial direction to form a plunger welding portion, the plunger connecting end is inserted into the column pipe through hole in one end of the column pipe and is connected with the column pipe body portion, and the plunger welding portion is welded to the end of the column pipe body portion. The column head comprises a column head connecting portion, a column head connecting end and a column head welding portion. The column head connecting end is inserted into the column pipe through hole in the other end of the column pipe and is connected with the column pipe body portion, and the column head welding portion is welded to the end of the column pipe body portion. An annular seal groove is formed in the outer surface on the column pipe body portion, and the two sides of the annular seal groove are respectively provided with an annular guide groove. The hydraulic support movable column is simple in structure, high in connecting strength and large in anti-bending torque, and the movable column can be prevented from being bent.