The invention discloses a valve switch control device of a switchgear. The valve switch control device comprises wheels arranged on a chassis. A mounting cylinder is fixedly arranged on the rear end of the chassis. A rotating handle is arranged on the tail end of the mounting cylinder. The mounting cylinder is provided with a positioning pin which is driven by the rotating handle to be inserted into a positioning hole of the switchgear. A control cylinder is fixedly arranged in the middle of the mounting cylinder. A turn button is arranged on the control cylinder. A rotating device allowing the turn button to control rotation of a magnetic block is arranged in the control cylinder. The valve switch control device has a reasonable structure, allows dollies to conveniently enter and leave the switchgear, is reliable and firm in locking, will not loosen even if equipment vibrates, is simple in unlocking, can adapt to switchgears with different specifications, exhibits good universality, is easy and labor-saving to operate, and can be operated just by one female worker.