An electronic device includes a shell, a thermal element, a controller and a fan. The shell defines a first air outlet and a second air outlet. The controller controls the fan to rotate clockwise to generate a first air current to dissipate the heat generated by the thermal element out of the first air outlet in a first preset condition, and control the fan to rotate anticlockwise to generate a second air current to dissipate the heat generated by the thermal element out of the second air outlet in a second preset condition.