A sliding hinge is mounted in an electronic device and has a stationary bracket, a sliding bracket and a resilient element. The stationary bracket connects to a base of the electronic device. The sliding bracket connects to a cover of the electronic device, is mounted slidably on the stationary bracket and has a body. The resilient element is mounted between the stationary bracket and the body of the sliding bracket to provide effectively friction to maintain the cover at any desired position. With the positioning holes and the positioning protrusions are formed on the stationary bracket and the sliding bracket to simplify the assembling procedure.