Abstract: Application status of supply chain simuation technique at home and abroad is introduced and probability of the technique applied in rational operation of oil and gas resource distribution system is discussed. Constitution and technical characteristics of oil distribution and LNG distribution systems are discussed separately. The authors analyze the problems needed to be solvedwhen facing with complicated oil & gas supply-demand environment and propose solutions to the problems. Suggestions in researching decision-making support technology for complex systems are presented to support scientif decision-making of the complex systems in order to reflect the advantage of the overall oil & gas concentrated distributing in word and deed.