In order to explore the different types,different proportions of fuel in the engine,the emission characteristics of applicability,and in order to explore Chen Hualiang' s industrial transformation approach,the basic physical parameters of different proportions of rapeseed oil,diesel fuel were determined,and the test was carried out in the engine.This test was operated on an ZS195 immediate diesel engine.And the test results showed that fuel consumption rates of mixed fuels were higher than pure diesel fuels.And with the increase proportion of rape oil fuel consumption rates were higher too.But by the increasing of load,the gap between them dropped.Mixed fuels in larger conditions remained low range of CO emissions.HC emissions curve of the BL10C20D70 fuel followed the same rule.Furthermore,in most of conditions,the other fuels' HC emissions were higher than pure diesel.NOx emissions of the mixed fuels were lower than the pure diesel fuels,with the increase proportion of rape oil,NOx emissions further reduced.Soot emissions of mixed fuels were lower than the pure diesel.And in the course of the operating mode,soot emissions of mixed fuels were lower.The basic physical and chemical properties of different proportion of mixed fuel was studied.It is used as fuel for diesel engine.The article discusses its influence on fuel economy and emissions performance.This provides a reference for the follow-up of such oil biological engineering transformation.