Methodology of the process and application of computer simulation systems based on discrete events method inside of a shipbuilding workshop are considered in this thesis. The process of creating section consisting of girder, panel section and girder section is discussed. The primary objective of the proposal is a comprehensive design methodology that forms, directs and improves the modeling efforts of the production system, as well as increasing the possibility of prediction and integration of strategic and time tactical decision making. This kind of approach imitates structure and system process which is consistent with production planning and production itself. The introductory section describes the importance of simulation and simulation modeling with the objective review of displaying basic idea and its possibilities. Approach which briefly describes the available methods of simulation modeling is selected, and then one of the method is elaborate in detail on a typical example. The second chapter presents an analysis of the production program referring to a shipbuilding workshop. The third chapter covers and describes the example of simulation, modelling, shipbuilding and production workshops in computer program "Tehnomatix Plant Simulation 12". The fourth chapter consists of listed results of four simulation models with appropriate tables and graphical displays. Based on given conclusion, new guidelines are proposed. The essential conclusions are proposed for further experimentation to optimize shipyard production process design.