Long-distance wireless transmission device with controllable transmission range

The invention provides a long-distance wireless transmission device with a controllable transmission range, which comprises a transmission transmitting module, a wireless transmission efficiency enhancing and covering layer, and a receiving module, wherein the transmitting module converts electric energy into an electromagnetic wave; the enhancing and covering layer effectively enhances coupling strength between the transmitting module and the receiving module through changing an electromagnetic wave near field distribution mode; and the receiving module receives the electromagnetic wave and converts the electromagnetic wave into the electric energy. The transmission transmitting module and the wireless transmission efficiency enhancing and covering layer can serve as infrastructures to be arranged along a traffic route below or near the road in a continuous, segmented or fixed point mode, and wireless transmission is provided for a long-distance static or dynamic object provided with the receiving module; and the device can also be used in a building, and wireless transmission is carried out on equipment in an effective range.