The utility model discloses an underwater submarine cable and submarine pipeline recovery clamp. The underwater submarine cable and submarine pipeline recovery clamp is provided with two clamping structures which are correspondingly placed and pivoted with each other in a pin shaft connection way, and a clamp tightening and releasing device mounted between the clamping structures and a handle, wherein the clamping structures comprise multiple sets of clamping arms which are integrally pivoted; the joint of a long arm and a short arm of each L-shaped clamping arm is in a transitional arc shape; the tightening and releasing device comprises multiple sets of rod members which are correspondingly placed and integrally pivoted; and the long rod member is vertically pivoted on a pivoting shaft to form a prismatic structure. When in use, the clamp only needs to be placed down onto a submarine cable and a submarine pipeline, an underwater robot rotates the handle and the clamp can be operated to tighten the submarine cable and the submarine pipeline, so that the underwater operation difficulty of the underwater robot is greatly lowered, the underwater operation efficiency of the underwater robot is greatly improved, and the submarine cable and submarine pipeline recovery operation can be quickly and safely finished.