This electric motor unit is provided with: an electric motor comprising a plurality of motor coils, a stator and a rotor; and an electrical connection module comprising a power-feed bus bar and a neutral-point bus bar. The power-feed bus bar comprises power-feed collars for each phase, in which terminal portions (61, 71 and 81) for each phase are arranged. The neutral-point bus bar comprises a neutral-point collar in which neutral-point terminal portions (101) are arranged. When viewed from a second cross section (V) which intersects a first cross section (U) containing all the neutral-point terminal portions (101), a minimum distance ([delta]2) between a second cross section neutral-point terminal row (NrV) on the second cross section (V) and a second cross section power-feed terminal row (FrV) on the second cross section (V) is greater than zero.