Disclosed are an X-ray detector with impact resistance and an X-ray imaging apparatus including the same. The X-ray imaging apparatus includes an X-ray source for generating and emitting an X-ray, and the X-ray detector for detecting the X-ray emitted from the X-ray source, wherein the X-ray detector includes a case including at least one opening, a sensing panel prepared to convert the X-ray emitted from the X-ray source into an electric signal, and a frame detachably inserted into the case through the at least one opening. The frame includes a body on which the sensing panel is arranged, a plurality of legs extended in a thickness direction of the X-ray detector from the edge of the body, and a plurality of buffering members closely arranged between the case and the plurality of legs to surround a plurality of surfaces of the plurality of legs, respectively. Accordingly, the present invention can implement color reproducibility with high quality.
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