The invention provides a motor support. The motor support comprises a body. The body comprises two supporting structures. The tops of the two supporting structures are connected to form an inverted V-shaped structure. A motor installing part is arranged on the top of the inverted V-shaped structure and used for being fixedly connected with a motor. Foundation feet are arranged at the bottoms of the supporting structures and used for being fixedly connected to equipment. The triangular structure similar to the inverted V shape is adopted in the motor support, the principle that the triangular structure is relatively stable is adopted, the motor is arranged on the top of the inverted V shape, and the two foundation feet are connected with a bottom plate to play a supporting role. By means of the motor support, the stability of the motor support is greatly improved, vibration of the whole machine is weakened as well, noise during running of the whole machine is lowered, and the quality is improved. The invention further provides an air conditioner outdoor unit.