Provided are a circuit board and a display apparatus in which, when a worker restores a cut wiring with laser, the worker may easily determine a portion to be irradiated with laser by the naked eye.In a circuit board including multiple layered wiring parts (G, O) and an insulating part deposited between layers of the wiring parts (G, O), the insulating portion has a missing part (F) at a superposed position where the wiring parts are superposed onto each other in a layered direction, and a marker (P) indicating the presence of the missing part (F) is formed.