VEHICLE HEADLIGHT

A vehicle headlight (1) includes: a first light emitting optical system (LE1) that emits first light (L1) from a first part; a second light emitting optical system (LE2) that emits second light (L2) from a second part positioned below the first part; a projection lens (35); and a beam shaper (50), in which the beam shaper (50) includes a plate-shaped main member (110) and a plate-shaped reinforcing member (120) overlapping the main member (110), the main member (110) includes a base portion (53) having a part that includes a front end of the main member (110) and does not overlap the reinforcing member (120) and a part that overlaps the reinforcing member (120) and to which the reinforcing member (120) is fixed, and an upper surface of the base portion (53) reflects a part of the first light (L1) toward the projection lens (35) in such a way as to form a cutoff line (CL) of a low beam light distribution pattern (PL).