The invention discloses a human resource management system based on a collaborative office platform. The system comprises a personnel management module which is used for providing a personnel management process which comprises the steps of entering a job, turning forward, renewing a signature, transferring, leaving the job, retreating, recruitment, and trying to use; during personnel demission, ahuman resource manager checks the process, the document, the client and the project information of the employee through personnel demission processing and displays the process, the document, the client and the project information on one page, so that related processing is facilitated; each flow of personnel management can be set, an appointed worker can obtain a corresponding work prompt in time,and after the personnel condition changes along with the personnel flow, the related human resource data can be automatically adjusted and updated. The efficiency of enterprise human resource management is improved.