AbstractAmeliorating waste treatment by technological improvements affects the economic and the ecological-environment benefitsof intensive pig production. The objective of the research was to develop and test a method to determine the technicaloptimization to ameliorate waste treatment methods and gain insight into the relationship between technological optionsand the economic and ecological effects. We developed an integrated bio-economic model which incorporates the farmingproduction and waste disposal systems to simulate the impact of technological improvements in pig manure treatment oneconomic and environmental benefits for the case of a pilot farm in Beijing, China. Based on different waste treatment technology options, three scenarios are applied for the simulation analysis of the model. The simulation results reveal thatthe economic-environmental benefits of the livestock farm could be improved by reducing the cropland manure applicationand increasing the composting production with the current technologies. Nevertheless, the technical efficiency, the waste treatment capacity and the economic benefits could be further improved by the introduction of new technologies. It impliesthat technological and economic support policies should be implemented comprehensively on waste disposal and resource utilization to promote sustainable development in intensive livestock production in China.Key words: technological options, waste treatment, pig production, bio-economic model, economic-environmental effects