A sliding apparatus for a sunroof of an automobile including a shoe having a first channel and a second channel slidably connected to a rail, a guide block including a front channel connecting a lower channel to form a first path, and a rear channel connecting to an upper channel to form a second path, and a lever with a first pin projecting from a first side and a second side, a second pin projecting from the first side and a third pin projecting from the second side. The first pin is connected to the front channel and the second pin is connected to the rear channel on the first side, and the first pin is connected to the first channel and the third pin is connected to the second channel on a second side.