The present invention is bottom-up precast that the plate-shaped caisson production method using a floating dock, the system, to a floating dock and the caisson using the same. Bottom plate making step of making a bottom sheet in the production of a land modular To this end; Bottom plate transfer step of transferring the bottom plate in the finished sheet making the floating dock; And floating dock conveying step of conveying the bottom plate is secured to the floating dock to the top of the sea floor in a particular location on the coast bottom mounting; Floating dock chakjeo step of mounting the floating dock to the bottom mounting; Can be provided with a bottom-up precast that the plate-shaped caisson manufacturing method using a floating dock that includes; caisson and the production stage of manufacturing the caisson from the bottom up, on the basis of the bottom plate from the floating dock. According to the effect that can significantly reduce the enormous problems of the former chapter of the conventional multi-step manufacturing process caisson land acquisition costs, Zhang produced, such as files, create construction costs and site restoration costs of caisson production after the completion of the file, including the demolition.