Abstract: The present invention relates to a sliding hinge apparatus. The sliding hinge apparatus of the present invention comprises a lower plate 31 with permanent magnets attached on a surface thereof and rails formed therein, and an upper plate 32 with permanent magnets attached on a surface thereof opposite to the lower plate 31 and rails having a shape complementary to the rails of the lower plate 31 formed therein, whereby the upper plate is engaged with the lower plate via the rails. According to the present invention, the sliding hinge apparatus that is very thin and is capable of semi-permanently maintaining its quick and smooth operation can be obtained.