The invention provides a sedimentation type crude oil leakage collection device comprising a collection ship. A collection assembly, a rough filtration assembly and a sedimentation assembly are arranged on the collection ship. The collection assembly is used for sucking seawater containing crude oil into the rough filtration assembly. The filtered seawater containing the crude oil is injected intothe sedimentation assembly through rough filtration assembly to be separated. The sedimentation type crude oil leakage collection device can conduct rapid collection and separation processing on thecrude oil leaking on the sea surface, human and material resources are saved, and the natural environment is effectively protected.