This review discusses the recent progress in covalent organic frameworks (COFs) for flexible electronic devices. COFs are porous, crystalline materials with high thermal and chemical stability, tunable channels, and diverse functional groups, making them promising for flexible electronics. The review covers synthesis strategies, applications in flexible energy storage devices (batteries, supercapacitors), data storage devices, and sensors, as well as future development directions. COFs are synthesized through various methods, including powder-pressing, composite fabrication, solution-processable COFs, interfacial growth, and electrochemical methods. They are applied in flexible batteries, supercapacitors, memristors, and humidity sensors, demonstrating excellent performance and flexibility. Despite their potential, challenges such as low conductivity and poor processability remain. The review highlights the importance of COFs in next-generation flexible electronics, emphasizing their unique properties and potential for future applications.This review discusses the recent progress in covalent organic frameworks (COFs) for flexible electronic devices. COFs are porous, crystalline materials with high thermal and chemical stability, tunable channels, and diverse functional groups, making them promising for flexible electronics. The review covers synthesis strategies, applications in flexible energy storage devices (batteries, supercapacitors), data storage devices, and sensors, as well as future development directions. COFs are synthesized through various methods, including powder-pressing, composite fabrication, solution-processable COFs, interfacial growth, and electrochemical methods. They are applied in flexible batteries, supercapacitors, memristors, and humidity sensors, demonstrating excellent performance and flexibility. Despite their potential, challenges such as low conductivity and poor processability remain. The review highlights the importance of COFs in next-generation flexible electronics, emphasizing their unique properties and potential for future applications.