Abstract: There are Peniciuuium, green mold, anthracnose, sour disease and other types of diseases during citrus fruit transportation and storage.To reduce the losses caused by diseases, the test was conducted in the storage library with natural ventilation.The results indicated that there were significant control effect of 5 fungicides against citrus storage diseases in the conventional dose range.Iminoctadine tris ( albesilate) was optimal to control storage disease and sour disease, iprodione second in duration.Prochloraz was optimal to Peniciuuium, green mold and anthracnose, imazalil second.During the storage period of 15⁴5d, five fungicides had no effect on dehydration rate of the citrus.But they were different after stored for 60d.Comparison with water control, there were no effects on citrus fruit color and appearance, iminoctadine tris ( albesilate) and iprodione taste slightly better flavor to60d.Comparison with water control, there were no effect on the citrus fruit nutritional quality indicators after chemical treatments in 15 to 30d.