The utility model discloses a motor installation component and air conditioner, wherein, motor installation component is used for installing AC motor or direct current motor in the wind channel, and the motor installation component include: the lateral wall in wind channel has first joint spare, the motor clamp plate has the holding tank of placing AC motor or direct current motor, motor clamp plate and AC motor or direct current motor interference fit, motor clamp plate have with first joint spare complex second joint spare, the joint of motor clamp plate through first joint spare and second joint spare cooperates to be fixed on the lateral wall. The utility model discloses a motor installation component and air conditioner has solved the problem that assembly efficiency is low, the cost is higher of motor clamp plate among the prior art effectively.