The urgency demanding to reuse the aquaculture water is more and more strengthen with the shortage of the water resources and the constraint of the environment pollution. How to correctly evaluate whether the treated aquatic water can be used ofr aquaculture again is the basis for avoiding insuffient or excessive treatment and improving treatment efficiency. Few reports about evaluating the reusing possibility was found until now. The reuse avaluation of aquaculture water can draw lessons from the evaluation criteria of aquaculture headwaters, but there should be differences. The current paper proposed the evaluating parameter used to of the reuse aquaculture water based on the effect of the aquaculture activity on the water quality. Furthermore, variation criteria and fixed criteria are proposed according to these parameters. For established production system and aquaculture animals, the recording and analysis of existing production behavior is the basis for obtaining information that can guide the actual aquaculture activities.