A lifting arrangement for lifting boats 2 off the water and for putting boats 2 onto the water is provided, which comprises a crane 8, 9, 27 and pallets or cassettes 16 to be arranged under the hull of a boat 2 to be lifted or put down, connected to the crane. These lifting elements can be lowered below the floating boat, with preferably centering elements 41, 42 being provided for aligning the boat 2 in reference to a lifting element 16 positioned underneath.