The invention discloses a deep well solidification barrel recovery device which comprises a moving platform, a hoisting boom mechanism, a hoisting disc position regulation mechanism and a hoisting disc mechanism. A solidification barrel recovery method is applied to the deep well solidification barrel recovery device and comprises the following recovery steps of 1, setting a coordinate system; 2,moving to a target well mouth; 3, determining a center position of the target well mouth; 4, regulating a hoisting position; 5, cleaning garbage and floating dusts on a solidification barrel; 6, further centering a main electromagnetic sucker and the solidification barrel; and 7, hoisting the solidification barrel. The deep well solidification barrel recovery device and the solidification barrel recovery method have the advantages that the main electromagnetic sucker and the solidification barrel can be accurately in butt joint; the solidification barrel is smoothly hoisted, and remote operation can be performed to effectively avoid nuclear radiation.