The invention discloses a marine ventilation and resistance-reduction device based on continuous track type motion adsorption. The marine ventilation and resistance-reduction device comprises a ventilation module and a fixing module, wherein the fixing module is a continuous track type motion mechanism; and a magnetic adsorption unit is mounted on the continuous track surface of the continuous track type motion mechanism. By adding the magnetic adsorption unit, the marine ventilation and resistance-reduction device based on the continuous track type motion adsorption allows the ventilation module to be adsorbed onto the outer surface of a hull under the premise of not destroying an original hull structure, so as to avoid the modification and influence on the original hull structure and toreduce the installation cost and cycle of the resistance-reduction device.