Abstract: A heat dissipating structure of a webpad is proposed, in which the webpad is formed with an air inlet, an air outlet, and a guiding tube that passes through a central processing unit and interconnects the air inlet and air outlet, with at least a heat dissipating device provided at a docking station of the webpad. When the webpad is connected to the docking station for high-speed operation, air from the heat dissipating device can pass through the air inlet and guiding tube to the central processing unit, and air taken with heat of the central processing unit is outputted through the air outlet to the atmosphere for effectively dissipating the heat generated by the central processing unit, so as to prevent the central processing unit from being damaged by overheat.