A panel structure is removably connected with a main housing of an electronic device. The panel structure comprises a panel body, two movable members and at least two elastic members. The panel body comprises two fixing parts; each movable member is movably connected with the panel body, and each movable member comprises a pivoting part and a corresponding fixing part, wherein the two movable members are movably apart from each other in a first axial direction such that each movable member is fixed with each fixing part with each corresponding fixing part, making each pivoting part which moves along with each movable member pivotally connected to the main housing. Each elastic member has two ends respectively connected to the movable members and the panel body.