A sliding hinge has two sliding assemblies mounted on a cover of an electronic device, two pivoting assemblies mounted on a base of the electronic device and two retractable connecting assemblies. An end of one retractable connecting assembly is connected to the end of the other retractable connecting assembly. Another end of each retractable connecting assembly is pivotally connected to a corresponding sliding assembly and a corresponding pivoting assembly. The two retractable connecting assemblies of the sliding hinge provide sufficient resilient force to push and hold the cover of the electronic device, especially a large-sized electronic device, at the closed or open position.