The present disclosure discloses the fishing line release equipment and the method of the line release based on the widely used drone or UAV(Unmanned Aerial Vehicle). In order to protect the drone safely flying to the destination and facilitate fishing line release in a more convenient way, the fishing line release equipment comprises a base and a release wire, said base fixing a mechanical clip release and the electrical power controlled action that release a release wire in a clamp. A controller board and a battery are fixed on the base. A cover box covers the base and electrical part are protected by the cover box. The base is fixed on the drone or UAV, one end of the release wire clamping to a gap slot in the tube that is a part of the base, the other end of the release wire connecting to the main fishing line. The clamp force can be adjusted through the nuts in the ends of tube which adjust a spring tension acting on two ball bearings which are pressed together to form a clamp in order to hold the release wire up to a pre-selected force. The release wire is clamped in the slot between the two ball bearings and the release wire is released when the pulling force coming from the fishing line excesses a threshold of a release force of the clamp.Each time a control key is pressed, an electrical motor makes a dial pad turn around, and a dial pin fixed on the dial pad pass through the gap, enforcing the two ball bearings to become separated and therefore allowing selective release of the release wire. A control signal can be supplied by a remote controller or a photoelectric switch or a signal output from the drone.
