Abstract: A leg electric shock switch of an electronic walking aid comprises an upper insulating plate having a restoring resilience; an upper electrode plate, installed below the upper insulating plate; a lower insulating plate; a lower electrode plate, installed above the lower insulating plate; an isolating element, being a plate made of an insulating material, and coupled between the upper electrode plate and the lower electrode plate, and including a plurality of through holes; such that if the upper insulating plate is touched and pressed, the upper electrode plate will produce a deformation, and the upper electrode plate will be passed through the through hole and electrically contacted and connected to the lower electrode plate. Therefore, the manufacturing procedure is simplified and the cost is lowered to achieve the effects of improving the cost-effectiveness of the manufacture, promoting the application of low-cost consuming materials, and enhancing the product competiveness.