The invention discloses an integrated device and method for collecting and processing floating objects on water. The integrated device is composed of four subsystems which are independent from and associated with each other, namely, a fishing and sliding passage conveying part, a crushing and compression packing part, a conveying and storage part and a water treatment part. The fishing and slidingpassage conveying part is composed of fishing equipment and a sliding passage, the crushing and compression packing part is composed of crushing equipment and compression packing equipment, the conveying and storage part is composed of a conveying belt device and a storage platform, and the water treatment part is composed of a main pipeline and a water treatment device. The integrated device iscompact in structure, low in manpower, financial resource and material resource consumption, small in occupied area and high in efficiency. The integrated method for collecting and processing the floating objects on the water overcomes the problem of singleness of the existing floating object removal method and can realize the integrated processing of fishing, salvage, crushing, compression packaging and storage of the floating objects on the water.