The invention discloses a pressurized aqua regia storage system. The pressurized aqua regia storage system comprises a storage tank body, a piston plate, a piston push rod, a telescopic hose and a connecting pipe. The storage tank body is an internally-hollow container with the open upper portion. The inner wall and the bottom of the storage tank body are both provided with linings. The piston plate is arranged in the storage tank body. The plate face diameter of the piston plate is the same as the diameter of the inner wall of the storage tank body. The piston plate is parallel to the bottom face of the storage tank body. An open hole of the piston plate is connected with one end of the telescopic hose, and the other end of the telescopic hose is connected with the connecting pipe. A valve is mounted on a pipe body of the connecting pipe. The connecting pipe is connected with a spray gun through the telescopic hose. The pressurized aqua regia storage system solves the problem about storage of aqua regia in the power industry, and meanwhile staff can use the aqua regia without being in direct contact with the aqua regia, so that the harm, caused by the improper operation, to the staff is avoided.