Marine goods lifting system

The invention relates to a marine goods lifting system, a hatch cover mechanism (1) is arranged at the top of a cabin, can open and close a hatch cover (12) matched with a hatch (11) by driving a telescopic rod (13) to stretch out and draw back, and locks the position of the hatch cover (12) through a hatch cover locking assembly (14) when the hatch cover (12) is in a completely closed state or ina completely opened state; a lifting platform mechanism (2) is arranged in a cabin and comprises a lifting platform (21) and a driving device (22); when the driving device (22) drives the lifting platform (21) to ascend to the hatch, the upper plane of the lifting platform (21) is flush with a deck on the periphery of the hatch (11). The lifting platform mechanism is arranged in the cabin, the cabin cover can be rapidly opened by driving the telescopic rod, complete opening can be achieved, and carrying of goods and materials is facilitated; the position of the hatch cover is locked through the hatch cover locking as