A waterproof structure including a housing, a display element assembled to the housing, and a sealing member is provided. The housing has a frame and an opening located on a plane. A portion of the display element is exposed out of the opening. The sealing member disposed between the housing and the display element has a first portion extending toward the opening from the frame and parallel to the plane and a second portion squeezed by the housing and the display element. A first end of the second portion next to the opening leans against the housing, and a second end of the second portion far away from the opening leans against the display element. A gap along a direction between the first portion and the display element is equal to or greater than deformation of the second portion along the direction, wherein the direction is orthogonal to the plane.