A dual-axis hinge includes at least a connecting section, an upper hinge and a lower hinge. The connecting section has two sides orthogonally connected to the upper and lower hinges respectively. The connecting section has a circuit cavity that communicates with circuit outlets of the upper and lower hinges to form a passage for accommodating a transmission circuit. The upper hinge is connected to a first sleeve for joining the top cover of a folding electronic product, and the lower hinge is connected to a second sleeve for joining the body of the folding electronic product. These connections enable the top cover to rotate in at least two different directions.