Abstract: Tests were made about planting aubergine with breeding turtle wastewater. Results indicate that more than 50　% organic matter and about 68　% NH₄⁺-N in the wastewater are absorbed and used by the planting aubergine soil system.Aubergine seedlings grow well, and the wastewater is purified effectively, but the PO₄^3- in the wastewater is not used well. The functional mechanism of the test system was analyzed and the main elements affecting purification and utilization were put forward in this paper. 