The invention relates to the field of ropes, in particular to an elastic ultrahigh-strength composite mooring rope which is formed by weaving twelve or eight strands of composite fibers. Each composite fiber is sequentially formed by chinlon, a polyester layer wound on the chinlon, and an ultra-high molecular weight polyethylene layer from inside to outside. The elastic ultrahigh-strength composite mooring rope provided by the invention is prepared by adopting multiple materials and woven by twelve or eight strands, the elongation reaches 6 to 10 percent, the buffering capacity of the mooringrope under stress is increased, the mooring rope retains ultrahigh strength, meanwhile, the impact forces of the mooring rope and anchorage space points are greatly reduced, and the use efficiency andthe service life of the mooring rope are prolonged. According to the elastic ultrahigh-strength composite mooring rope provided by the invention, a sensor for monitoring is arranged on the mooring rope, so that the displacement and the impact forces are monitored conveniently, and data can be conveniently analyzed. The elastic ultrahigh-strength composite mooring rope provided by the invention isscientific and reasonable in design, working personnel can conveniently and intuitively detect parameters, digitizing measurement can be carried out, and a foundation is laid for the evaluation of the mooring rope.