Underground optical cable and well wall coupling device and method for seismic exploration

The invention discloses an underground optical cable and well wall coupling device and method for seismic exploration, and relates to the technical field of seismic exploration. Comprising at least one connecting module used for being installed on an optical cable and an elastic module which makes contact with a well wall and the connecting module to push the optical cable arranged on the connecting module to the well wall so that the optical cable can be attached to the well wall. The connecting module is provided with an installation part used for installing an optical cable and a connecting part used for installing the elastic module. The installation part and the connecting part are arranged on the two opposite sides of the connecting module. In the second aspect, the invention provides an underground optical cable and well wall coupling method for seismic exploration. According to the invention, full-well-section coupling of the underground optical cable and the well wall can be realized, so that seismic