Direct construction delivery method was introduced for cost reduction of residential building by the government. Direct construction delivery method is based on, literally, the direct contract between owner and special contractors without involvement of a general contractor. The owner conducts the role of a general contractor as well as owner's original responsibility while construction works being executed by special contractors. This delivery method has never been performed in the past. Therefore both owner and special contractors have not been their experiment, also relevant legal system does not developed to conduct construction project efficiently. Therefore this paper aimed to figure out the problems and improve the current status in issuing relevant legal system for the efficient direct construction delivery method. To achieve purpose of this research was collected data at the pilot project of direct construction and interviewed with the supervisors and construction managers. And the improvement plan was established based on implications from them.