The invention relates to a frequency conversion air conditioner for new energy passenger car. A frequency conversion compressor is arranged at the middle part of an air conditioner, the two sides of the compressor are provided with a control unit and a power system; a condensation component is arranged at the front end of the air conditioner, the middle part is a condensation fan, and condensers are arranged at the two side in an inversed V shape; an evaporation component is arranged at the rear end of the air conditioner, the middle part is a return air inlet, the two sides are provided with an evaporation fan, and an evaporator is arranged between the evaporation fan and the return air inlet; the front end of the frequency conversion compressor is communicated with a four-way change valve by virtue of a check valve, the rear end is communicated with the four-way change valve by virtue of a gas-liquid separator, the four-way change valve is respectively connected with the condenser and the evaporator, and the condenser is connected with the evaporator by virtue of a drier and a bidirectional expansion valve; all pipelines are connected by adopting a welding way, all the electric components are connected and arranged in an overhead type structure, and only a power supply is externally connected with a control cable. The invention has the advantages that structure is compact, occupying space is small, and energy consumption is low, thus being applicable to new energy passenger car.