The invention provides an underwater balanced high pressure valve based on a bionic principle. The underwater balanced high pressure valve mainly comprises a valve cover, a valve body, a valve core, a corrugated pipe, a ratio electromagnet and a control module, wherein the valve cover and the valve body achieve effects of protection and supporting; a water inlet, a water outlet, a pressure balance port, a cable joint and an oil injection hole plug are respectively arranged on the valve body and the valve cover, so that the valve can be connected to the outside. The ratio electromagnet, the valve core, the corrugated pipe, a sealing ring and a balance piston are mounted in a valve cavity; on the premise that the sealing properties of the sealing ring and the corrugated pipe are kept higher, the balance piston and the corrugated pipe can move horizontally in a stretching manner under the action of internal and external pressures of the valve body, which is based on the principle that the skin of bionic deep-sea fish can stretch with the change of the pressure in the seabed. The underwater balanced high pressure valve has the advantages of improving the control precision of the valve core, reducing the transmission torque on a screw rod and improving the work reliability of a transmission mechanism.