The invention discloses a charging port box part structure of a vehicle. The charging port box part structure comprises a charging port box body and a charging port box cover, wherein a quick-charging socket accommodating hole and a slow charging socket accommodating hole are formed in the charging port box body; the charging port box cover is hinged with the charging port box body; an opening-closing cylinder is arranged in the charging port box body; the opening-closing cylinder comprises an opening-closing cylinder body and an opening-closing cylinder rod; a first connecting part is arranged on the charging port box body; the first connecting shaft is in spherical hinge connection with the opening-closing cylinder body; a second connecting shaft is arranged on the charging port box cover; and the second connecting shaft is in spherical hinge connection with an opening-closing cylinder rod. The charging port box part structure has the beneficial effects that: part of charging structures can be effectively protected, layout is reasonable, automatic opening-closing capacity is achieved, and use is convenient; and intelligent degree is improved, and automation of a charging process can be realized. Manual operation is reduced, stability, in a motion process, of the charging port box cover can be improved, and the service life is guaranteed.