<p>Amidst the progressive depletion of the world's non-renewable resources, there is an escalating imperative to expedite the development of materials that are both environmentally benign and sustainable. Bamboo-based transparent materials demonstrate significant potential for applications in energy-efficient buildings, optoelectronics, and flexible devices due to their low cost, renewability, excellent thermal insulating properties, and high light transmittance. This review provides a comprehensive summary and discussion of advancements in the preparation of bamboo-based transparent materials and their applications in flexible electronic devices, based on an analysis of recent studies. Initially, the review introduces the two primary preparation routes for bamboo-based transparent materials: the top-down method and the bottom-up method. A systematic description and comparison of these specific preparation techniques are presented. Subsequently, the mechanical, thermal, and optical properties of bamboo-based transparent materials are discussed. Furthermore, the review highlights advanced applications of these materials in flexible electronics, with a particular focus on optoelectronic and sensor devices. Concluding our discourse, we summarize the challenges and potential future development prospects of bamboo-based transparent materials in practical applications.</p> Graphical abstract <p></p>