As an innovative technology，blockchain is widely recognized as the foundation for building the Internet of Value. However，with the proliferation of various blockchain systems，the lack of interoperability between them has resulted in the formation of data silos. Cross-chain technology enables the exchange of information and trust between heterogeneous blockchains，thereby breaking down the data barriers of individual blockchain systems. This report provides a formal definition of cross-chain interoperability at the read/write operations level and conducts an in-depth analysis of existing cross-chain solutions. The study finds that existing cross-chain research lacks high performance，intense supervision，and adaptive solutions，which cannot meet actual cross-chain needs. To address these challenges，this report proposes an efficient，secure，and adaptive cross-chain interoperability solution from four aspects：cross-chain architecture，interaction mechanism，regulation and governance，and application. This solution is designed to achieve large-scale heterogeneous blockchain interconnection and empower various traditional industries with blockchains.