The invention discloses a device capable of protecting a pressure transmitter. The device includes a box body provided with an upper end cover. The inner wall of the box body is provided with a plurality of uniformly distributed buffer springs. One end of each buffer spring is connected with the inner wall of the box body and the other end of each buffer spring is connected with a fixing piece. An air pump, an air pipe, an air bag and an operating rod are arranged in the box body. One end of the air pipe is connected with the air outlet of the air pump. The other end of the air pipe is connected with one end of the operating rod. The other end of the operating rod extends from the air inlet of the air bag into the air bag. The air inlet of the air bag is provided with a sealing rubber ring. The operating rod is a hollow rod and has two open ends. Device can easily and quickly store the pressure transmitter pressure, is high in storage efficiency, good in the protection effect on the pressure transmitter, and low in storage cost.