Against the backdrop of the wave of digitization and intelligence sweeping the global education field, digital textbooks have emerged as a key strategic pivot for reshaping the way knowledge is transmitted. The paper takes the practice of digital textbook construction by Tsinghua University Press as an example to explore the effective path of digital textbook construction, in order to provide theoretical support and practical reference for the high-quality development of digital textbooks.

The research process is mainly divided into three parts: systematically analyzing the value of the high-quality development of digital textbooks to gain a deeper understanding of the necessity of their construction; analyzing the multidimensional attributes of digital textbooks and examining the key elements in their construction; elaborating on the positive attempts and significant achievements of Tsinghua University Press, using its digital textbook construction practice as a case study to promote the digital transformation and innovation upgrading of the education publishing industry.

Research finds that digital textbooks have five core attributes, namely teaching application attribute, publication attribute, ecological synergy attribute, standardization attribute, and intelligence attribute. The teaching application attribute of digital textbooks is its core value, which is related to whether it can truly meet teaching needs and improve teaching quality. The publication attribute of digital textbooks is the basis for their legal application and widespread dissemination in the field of education. It not only ensures the quality and standardization of digital textbooks, but also promotes the digital transformation and innovative development of the education publishing industry. The ecological synergy attribute of digital textbooks is the key to their successful promotion and continuous optimization. Through multi-party cooperation, a strong synergy is formed to jointly promote the sustainable development of digital textbooks. The standardization attribute of digital textbooks is the cornerstone of educational digital transformation, ensuring collaboration and progress among different entities by providing unified norms and guidelines. The intelligence attribute of digital textbooks is the product of the deep integration of information technology and intelligent technology in the field of education, which enables digital textbooks to better adapt to the trend of educational development and promote profound changes in teaching modes. Tsinghua University Press has provided valuable reference for the high-quality development of the industry by exploring the path of digital textbook construction: first, building a comprehensive application service matrix for digital textbooks in teaching, learning, practice, and evaluation scenarios; second, building a full-process publishing system covering content planning, proofreading, processing, and distribution services with the core of "deep integration of paper, electronics, and digital technologies"; third, building a collaborative ecosystem for the publication and application of digital textbooks, promoting the transformation of digital textbooks from a single product to a comprehensive educational service; fourth, actively participating in building a digital textbook technology and business standard system, and establishing a benchmark for technical specifications and copyright protection in the industry; fifth, building the intelligent applications for digital textbook publishing and services, achieving a leap in production efficiency and innovation in learning experience.