A comprehensive and integrated suite of computer software has been developed to simulate the steady, one-dimensional, incompressible fluid flow in pipeline networks. The computer program accommodates Newtonian liquids, but does not generally apply to gas flow unless the assumption of constant density is acceptable. The computer program is written in C language, to solve the basic pipe system equations using the linear theory method. This computer program is written to analyse steady state flows and pressures for pipe distribution system. The program is written to accommodate any piping configuration and various hydraulic components such as pumps, valves or any component, which produces significant head loss. Computations can be carried out using English units of CFS, GPM or Standard International (SI) units. In this project, the linear theory method is employed for solving the set of equations describing the pipe network. In addition, other methods for solving the pipe network have been described briefly. The simulation software has been successfully applied to solve a number of networks. Moreover, the results of the simulation were satisfactory.