Self organizing DAO, as a new organizational form based on block chain technology and smart contracts, has the characteristics of decentralized decision-making, high transparency, and rapid motivation, making it suitable for changing traditional human resource management models. This article proposes three innovative application directions for human resource management based on self-organizing DAO: sustainable reward and incentive mechanisms, decentralized recruitment and selection, transparent performance evaluation, and feedback management. In terms of reward and incentive mechanisms, self-organizing DAO can use the token economy model to motivate employees' contributions and behaviors, establishing a fair and sustainable reward and incentive mechanism; In decentralized recruitment and selection, self-organizing DAO can achieve self certification and evaluation of candidates through smart contracts, reducing information asymmetry in the recruitment process, etc; In transparent and open performance evaluation and feedback management, self-organizing DAOs can establish a transparent and verifiable performance record system, and can also provide immediate and regular feedback through smart contract systems, ensuring that the evaluation and feedback results are fair, objective, and trustworthy. By studying these three innovative applications, we can further promote the efficiency and fairness of human resource management, and enhance the value creativity of modern organizations and employees.