The invention relates to the switch technology field and especially relates to a vacuum load switch operation mechanism. The vacuum load switch operation mechanism comprises a switch rack body, an electric closing mechanism arranged on the switch rack body, an electric opening mechanism, a manual closing mechanism and a manual opening mechanism. The electric closing mechanism comprises a closing spring, an energy storage motor, a transmission shaft, a driving arm, a transmission chain, a transmission chain wheel, an energy storage shaft, a transmission plate and a transmission arm. The energy storage motor drives the transmission chain to rotate. The transmission chain drives the energy storage shaft to rotate through the transmission chain wheel. The energy storage shaft rotates so as to stretch the closing spring, and the closing spring drives a cam to rotate. In the invention, electric opening and closing can be performed, and manual opening and closing can be performed too; and energy consumption, material cost and a power supply requirement are low.