Abstract: Given the significance of digital storytelling for K-12 education, the study aims to design and develop an interactive digital storytelling according to Mayer’s Cognitive Theory of Multimedia Learning, and then discuss its feasibility and effectiveness. Based on the existing picture book "What a Magical Little Stone" mainly for lower-grade pupils, the storytelling, re-created with Articulate Storyline software, includes 3 modules: "Read & Learn", "Try & Test", and "Imagine & Create". It creates vivid situations with animation, audio, and other interactive elements, so as to help children grasp correct pronunciation and spellings, improve the ability of imagination and creation, and cultivate good attitudes and qualities such as interest in reading. The digital storytelling was scored and assessed by 3 teachers and 25 graduate students majoring in educational technology from the perspectives of multimedia production and instructional design. And 30 children were randomly chosen to give their feedback after experiencing it. Both preliminary results are satisfactory. Further studies will explore the effect of the digital storytelling applied in different teaching activities and strategies on students’ conception and performance. We hope to provide empirical evidence on the design and application of digital storytelling, enrich and benefit local practice in China, and explore new possibilities with technologies. More participants will be invited.