In view of the psychological pressure and emotional needs faced by children in the digital era, this paper discusses the application of the concept of healing in the interactive design of children’s digital picture books, and proposes optimization strategies to improve the emotional interaction experience of digital picture books and promote children’s mental health and emotional development. Taking the healing children’s digital interactive picture book as the research object, this paper constructs its theoretical framework, covering four core dimensions: the evolution of “media”, the transformation of creators, the evolution of “narrative” and the reconstruction of audiences. By combing the development status of digital picture books for children with healing systems at home and abroad, this paper systematically analyzes the existing problems in the current interaction design, and proposes three optimization strategies: interface design optimization: from universal interaction to child-friendly interaction, emotional intelligence: from standardized modules to personalized graded reading optimization, and community construction: from a single reading mode to a collaborative learning system. Integrating the concept of healing into the interactive design of children’s digital picture books can not only effectively promote the development of children’s emotional resonance and psychological resilience, but also alleviate anxiety and improve the immersion and interactivity of reading. The research results provide theoretical support and practical guidance for the emotional interaction design of children’s digital picture books, and provide a new path for the innovation and development of children’s digital content in the future.