| Currently, competition is becoming increasingly fierce among global shipbuilding companies, and the ship construction quality is an important factor to measure the core competitiveness of shipyards. Therefore, all shipyards continue to explore the fine precision shipbuilding technology of quality ships.Shipbuilding is the construction of the hull structure precision control based on the use of advanced control technology and precision control precision approach accuracy at a reasonable and effective management process control, implementation of ship construction precision control of the whole process. Through data recording, accuracy assessment and other control measures, rational analysis point precision control, strict implementation of precision control system, we can reduce the workload of the construction site, to improve production efficiency and reduce the purpose of the construction cycle.Ship propulsion system is the power source of the ship, and the installation precision control of the equipment is directly related to the performance of the ship propulsion system. The precision control of propulsion system is based on the optimization of hull structure construction precision control technology. According to the characteristics of ship’s long axis, the positioning and installation of the main engine is based on the four time.This article briefly describes the advance in the construction of ships in the base system installation precision control on the main content, combining with practical work experience in ship construction induction accuracy management process, summarizing precision management practices, analyzing the reasons affect the ship’s propulsion system equipment installation precision. In response to these factors, focusing on the hull structure precision control technology research, promoting research system equipment production base of precision control technology and precision control study propulsion system equipment installation. According to the research results Precision Control Technology in a ship in the Dalian shipyard for process applications and optimizations of real ship, the accuracy assessment by statistical precision control precision and accuracy of contrast optimization process before and after the control process real ship test data measurement, the accuracy of the control process the practical effect can be verified. |