[Object] To optimize the processing technology of preserved fruits from D.alata Linn.[Method] D.alata from Hainan was as test material and treated with compound color-preserving reagents,then dried by microwave method,blowing method and microwave –blowing method respectively.[Result]The optimum process for the production of high quality preserved fruit of D.alata was as follows:D.alata slice in the size of 3.0 cm×5.0 cm×(0.3~0.5)cm,which was treated with compound color-preserving reagent(0.075%VC,0.300% cit...