To provide a certificate inspection apparatus for a game machine capable of surely inspecting the sticking of a certificate in the manufacture line of the game machine.

A roller conveyor 110 carries a pachinko game machine P in the erected state of turning a front surface and a back surface to a direction crossing a carrying direction, and when a detection switch 123 detects that the pachinko game machine P is carried to a certificate inspection position T, a certificate detector 130 disposed at the side of the carrying route of the roller conveyor 110 detects the presence/absence of the certificates C1 and C2 at certificate stuck positions A1 and A2. Thus, the certificate is automatically inspected while carrying the pachinko game machine P to the next process.