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The reuse of recycled water is of great significance for increasing the supply of water resources and alleviating the pollution of the water environment. However, the public's rejection of recycled water has negative influences on the promotion of recycled water reuse. In order to solve this problem, this study took the behavior guiding policy of recycled water reuse as the research object. The related self-construction index, which measures the interaction between individuals and groups, was selected as the design basis of different individual interaction rules. On this basis, the agent-based model (ABM) was constructed to simulate the effect of different policies. Firstly, a questionnaire survey was carried out in the arid area of Northwest China, and the artificial neural network model of individual decision-making was trained on the basis of the first-hand data obtained. By embedding the neural network model into the ABM model, the individuals' decision-making in the simulation process was realized. The results showed that: (1) The demonstration guiding policy had a good effect on all kinds of recycled water reuse behaviors. (2) At the same time, the effect of environmental motivation stimulating policy and knowledge popularization policy could be enhanced or weakened with the increase of human contact degree of recycled water reuse behavior. The environmental motivation stimulating policy had a substantial impact on the recycled water reuses with a high contact degree. (3) The knowledge popularization policy had a good effect on the reuse behavior of recycled water with low human contact, but it even harmed the reuse behavior of recycled water with high contact. According to the research conclusion, the following policy recommendations are put forward: When a promotion policy of recycled water reuse is made, attention should be paid to distinguishing different types of recycled water reuse behavior and appropriate guiding policies should be chosen. As the demonstration guiding policy has an excellent guiding effect on all types of recycled water reuse behaviors, it is necessary to strengthen the construction of the demonstration project of recycled water reuse. For the category of recycled water reuse with high human contact, attention should be paid to the publicity of its environmental protection attribute to stimulate the publi's motivation for environmental protection. As for the category of recycled water with a low human contact degree, attention should be paid to the dispelling of the public's misgivings by strengthening the popularization of relevant knowledge. [ABSTRACT FROM AUTHOR]