Data Commons is a powerful public data platform designed to provide a unified knowledge graph by integrating global public data, helping users easily explore and analyze data. Initiated by Google, it supports the integration of multiple data sources and offers a variety of visualization tools and APIs, facilitating data exploration and research. The key advantage of Data Commons is the standardization and unification of data, allowing users to quickly access and analyze data without complex preprocessing. Additionally, it supports community contributions, enabling users to share their analyses and insights to advance the field of data science. Data Commons is suitable for researchers, data analysts, policymakers, and any group that needs public data to support decision-making. Its free access model lowers the barriers to data usage, promoting widespread dissemination and application of data.