A fixing clip for fixing an interior part of a vehicle is provided. The fixing clip is assembled in a body with the interior part via a headlining by a screw and is fixed to a mounting bracket provided in a vehicle body. The fixing clip includes a bottom part provided with a screw hole through which the screw is fastened and being in close contact with an upper surface of the interior part, a pair of body parts extending and being bent upwardly from both ends of the bottom part to face each other, and a pair of coupling parts extending and being bent outwardly and downwardly from upper ends of the body parts and being inserted into clip insertion holes provided on the mounting bracket. Accordingly, the clip can firmly and easily mount/separate an interior part on/from the vehicle body with its deformation, damage, or unexpected seceding due to an external force prevented.