The invention belongs to the technical field of ship machines and relates to a garbage collecting double-body ship which solves the problem that garbage floating on existing bay cannot be cleared easily. The double-body ship comprises two ship bodies. The two ship bodies are connected through a connecting bridge. The connecting bridge is provided with a garbage storing box. The front end of the garbage storing box is provided with a channel for garbage to enter. A drive plate capable of pushing the garbage into the garbage storing box through the channel is arranged on the top of the garbage storing box. The double-body ship can operate in a bay area, the floating garbage enters the channel, then the drive plate pushes the garbage into the garbage storing box through the channel, thus thegarbage can be cleared, manual salvage is not needed, and the garbage clearing efficiency is improved.