The invention relates to a compound fresh-keeping agent for a Shatang orange, which comprises: one of from 0.2% to 4% of film agent of shell lac, chitosan, and wool lanline, a mixture of two or three of from 0.1% to 0.15% of antiseptic prochloraz, iprodione, pyrimethanil, fludioxonil, azoxystrobin and tecto, from 0.02% to 0.05% of the surface-active material of alkyl sodium sulfonate or a sucrose fatty acid ester, from 0.02% to 0.05% of potentiating agent of diethyl aminoethyl hexanoate or pine needle essential oil, and allowance water. The compound fresh-keeping agent has the advantages that the Shatang orange processed by the agent of the invention is not easy to rot during storage and transportation, the base and leaves of the fruit are kept, and the leaves are kept green, qualified fruit rate is over 95%, the content of vitamin C, titrable acid and dissolvable solid content is not distinctly lowered, which improves the economic value of Shatang orange.