The invention belongs to the technical field of medical treatment assisted equipment, and discloses a hydraulic thoracoscope and laparoscope fixing support. The hydraulic thoracoscope and laparoscopefixing support is provided with a clamping knob, a fixing clamp, a rotating shaft, a fixed adjusting switch, an adjusting knob, a strut, a cross rod, a fixing knob, a connecting rod, a fixing rod andan endoscope body fixing hole. The number of surgical staffs can be reduced, the labor cost is saved, and the fatigue of doctors in a using process is relieved; several joints are hydraulic joints, and can rotate randomly, when required angle and depth for a surgical field are set, the knob can be tightened for fixing the support temporarily, manual shaking can be relieved during surgery, and thevisual field is stable; the hydraulic thoracoscope and laparoscope fixing support is detachable, can be conveniently sterilized by a clamp type rapid sterilizer in an operating room, and does not needto be treated in a supply room, and thus, the surgery turnover speed is increased; the lower end of the fixing support is fixed at an edge of a common surgical bed; and the hydraulic thoracoscope andlaparoscope fixing support can be used for various hospitals including primary hospitals.