Crane winching hydraulic system and crane

The utility model discloses a crane winching hydraulic system and a crane. The hydraulic system comprises a winching hydraulic motor and a hand-operated direction valve (5) connected to a main oil inlet line (3) and a main oil returning line (4). The winching hydraulic motor is connected to the hand-operated direction valve (5) and is a pilot pressure control variable displacement motor (1). The pilot pressure control variable displacement motor (1) comprises a variable displacement mechanism (14) used for controlling the discharge capacity of the pilot pressure control variable displacement motor. The crane winching hydraulic system further comprises a proportional pressure valve (12) in linkage with the hand-operated direction valve (5). The proportional pressure valve (12) can be driven by the hand-operated direction valve (5) to output hydraulic control oil with variable oil pressure to the variable displacement mechanism (14). The crane comprises the crane winching hydraulic system. According to the scheme, the pilot pressure control variable displacement motor can be applied to the hand-operated control type crane.