Non-destructive inspection method

A non-destructive inspection method of inspecting an inspection target using multiple different types of non-destructive inspection means that include one non-destructive inspection means and at least one other non-destructive inspection means, the method comprising:

• determining a marking position on the inspection target in a detection result by the one non-destructive inspection means, causing a device to store the marking position, and fixedly forming a mark on the inspection target corresponding to the marking position, the mark being detectable by the at least one other non-destructive inspection means,
• causing the at least one other non-destructive inspection means to inspect the inspection target including the mark, and,
• contrasting detection results comprising the detection result by the multiple different types of non-destructive inspection means in reference to the mark which is in the marking position, wherein
• the multiple different types of non-destructive inspection means include two or more of an X-ray imaging means, a magnetic field distribution measurement means, a thermography imaging means, and a hardness measurement means.