A cable reel trolley includes a main body fixed with a carrying unit, and a wheel frame and a third wheel at the bottom, with the third wheel parallel to the wheel frame. The wheel frame has two ends respectively installed with a first wheel and a second wheel. A direction-swaying member is fixed between the wheel frame and the first wheel, able to shift the axial direction of the first wheel so that the trolley can move with the first wheel and the second wheel or with the first wheel and the third wheel optionally. That is, the trolley can travel forward and backward or leftward and rightward, turning vertically in a narrow space.