The invention discloses a solid streamer for ocean seismic exploration. The dragging cable comprises a main cable, hydrophones, a buoyancy sleeve and an outer sheath. The hydrophones are fixedly arranged on the main cable at equal intervals and electrically connected with corresponding cable cores in the main cable. The buoyancy sleeve is made of foaming polyethylene materials which are extruded on the main cable. The buoyancy sleeves are fixedly arranged on the main cable at equal intervals and between adjacent two hydrophones. The outer sheath is made of thermoplastic polyurethane elastic rubber materials and extruded on the exteriors of the hydrophones, a positioning end and the buoyancy sleeve and is seamlessly adhered to the hydrophones tightly.