The invention discloses an efficient and multifunctional filter material and a preparation method thereof. The efficient and multifunctional filter material comprises a body and a microporous film layer and a nanometer fiber film layer which are located on the dust-attaching surface of the body, and the microporous film layer is arranged between the body and the nanometer fiber film layer; the microporous film layer is prepared on the dust-attaching surface of the body by adopting a plasma gas-phase polymerization process; the nanometer fiber film layer is prepared by electrospinning a spinning solution on the microporous film layer by adopting an electrostatic spinning process. The filter material is high in filter efficiency, efficient and durable in antistatic and antibacterial properties, and the preparation method is simple and easy to operate and environment friendly.