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