A medical stand having a balance structure using a gas spring according to an embodiment of the present invention includes a fixed body portion； A first variable body mounted on the fixed body so as to be able to move up and down； A gas spring unit provided inside the fixed body portion to provide a force for raising and lowering the photographing apparatus； a roller unit having a plurality of sheave rollers connected to the gas spring unit by a wire in a compound sheave structure； A first lifting and lowering driving part for lifting and lifting the first variable body part up and down the fixed body part during operation of the gas spring unit, wherein the first lifting and lowering part is coupled to the first variable lifting body and the other end is coupled to the first variable body part； A second variable body part mounted on the first variable body part so as to be able to move up and on which the photographing device is mounted； And a second lifting and lowering portion connected to the second variable body portion and lifting the second variable body portion upward and downward relative to the first variable body portion, wherein the roller unit is coupled to the gas spring unit, A first wire fixing member； A second wire fixing member coupled to the first variable body portion and having the other end of the wire fixed； A movable sheave roller connected to the gas spring unit and moved by the stroke length of the gas spring unit when the gas spring unit is operated； And a plurality of fixed sheave rollers connected between the moving sheave roller and the second wire securing member by a wire, wherein the plurality of fixed sheave rollers are connected by wire to the moving sheave rollers in a composite pulley structure, The gas spring unit increases the stroke length by the composite pulley structure of the roller unit and increases the vertical moving distance of the photographing device with respect to the fixed body portion .본 발명의 일 실시예에 따른 가스스프링을 이용한
