A gel valve comprising a main body, a second main body, seals, and a sealing package device. The main body and the second main body are fixedly connected, with the main body having a cavity and the second main body having two cavities. The seals are fixed between the main body and the second main body. The rear end of the sealing package device is fixed to the seals, isolating the cavities through the sealing package device. The second main body includes an inlet and an outlet for gel, both connected to the two cavities. The sealing package device contains a storage cavity, which is connected to the two cavities.