This article explores the application of artificial intelligence technology in social decision-making and public management, and analyzes the ethical issues and considerations involved. The application of artificial intelligence technology in social decision-making includes data analysis and prediction, as well as intelligent decision support systems. In public management, artificial intelligence applications involve automated processes and robot assistants, as well as data-driven policy formulation. However, artificial intelligence applications have also raised a series of ethical challenges, including privacy and data security issues, as well as issues of inequality and discrimination. To address these challenges, relevant ethical frameworks and guidelines have been proposed, including guidance on ethical principles and values, as well as support from regulatory and legal provisions. Only within a reasonable ethical framework can artificial intelligence technology better provide value for social decision-making and public management, and promote social justice and sustainable development.