Abstract: The technology of integrated evaluation of petroleum resources with objects is one of the top ten technologies that the global petroleum industry should devote major efforts to develop in the 21st century.After analyzing its technological characteristics and application demands,an overall structure of the software system was put forward.Furthermore,the integrated software system-Integrated eva-luation system of petroleum resources with objects,RIOSys 1.0,which set exploration data management,resources assessment and objects evaluation in one,was developed.This system consists of two layers,the lower one is the integration platform and database(data and graphics),the upper one deals with series of different application software modules,such as basin studies,play evaluation and exploration decisions.RIOSys 1.0 integrates several new technologies such as data mapping database,exploration development block evaluation,assessment and decision of exploration target,spatial distribution and probability prediction methods of petroleum resources,so it provides an integrated platform for the studies of integrated evaluation of resources with objects,and will play an important role in the future petroleum exploration and research.