A vehicle body front part structure includes: a radiator panel frame, front side frames; an inverter unit; a front cross member extending in the vehicle width direction ahead of the inverter unit; upper frame reinforcing members in a pair extending in a vehicle longitudinal direction on an upper side of the vehicle; and radiator panel reinforcing members forming a V shape pointing in the vehicle longitudinal direction. In each radiator panel reinforcing member, an apex is joined to an outer part of an upper end of the radiator panel frame; a rear end of an upper side member is joined to a front side part of a bent part of the upper frame reinforcing member; and a rear end of a lower side member is joined to an upper surface of the front side frame ahead of a joint part joining the front cross member and the front side frame.