A non-destructive inspection device has an inspection unit body and a support casing which is used as a set-up type device by combining the inspection unit body and the support casing in ordinary inspection, and is used as a portable type device by separating them for special inspection situations involving narrow places or high places. The support casing can be freely combined to or separated from the inspection unit body. When combining the two components, the non-destructive inspection device can carry out the inspection based on a stable set-up mode in the same way as conventional devices. When separated, the inspection unit body is used as a portable device.
