Ultrathin seam hydraulic support

An ultrathin seam hydraulic support comprises a top beam, hydraulic columns and a base. The top beam is a split-type combination top beam and comprises more than two branch top beams. Each branch top beam is formed by an entire steel board. The hydraulic support is used for supporting the top beam, and each branch top beam is supported by at least one hydraulic support. The base (3) is used for locating the hydraulic columns and is formed by an entire steel board. The hydraulic columns are adoptable for a coal seam in thickness ranging from 400mm to 600mm, the thickness of the top beam ranges from 20mm to 200mm, and the thickness of the base ranges from 20mm to 200mm. When the hydraulic columns support and protect the top beam normally, the height of supporting space between the top beam and the base is larger than 200mm. Mechanization of ultrathin seam mining support and protection equipment, the hydraulic supports are applied in ultrathin seam mining actually, safety of seam mining is improved greatly, labor force of workers is reduced, and working efficiency is improved.