Sealing stop block of stop valve

The utility model relates to the field of stop valves, and discloses a stop valve sealing stop block which comprises a base, a valve installation plate is fixedly installed on the base, two installation notches are formed in the valve installation plate, and an upper stop valve and a lower stop valve are fixedly installed on the two installation notches respectively. A stop valve baffle is clamped to the position, corresponding to the mounting notch, of the valve mounting plate, a side plate is arranged on the base, a U-shaped notch is formed in the position, corresponding to the valve mounting plate, of the side plate, the U-shaped notch is clamped to the outer side of the valve mounting plate, and the stop valve baffle blocks the notch of the remaining portion of the mounting notch. By means of the stop valve baffle, gaps of the lower stop valve and the upper stop valve which are installed can be blocked, and snakes, rats, insects and the like are prevented from entering an outdoor electric controller, dama