In the era of digital economy, the students can learn online autonomously through the amount of learning resources on the Internet in their spare time. In class, the students can learn offline through discussion. The combination of online and offline learning will constitute the most efficient learning method at this stage. The course of digital architecture design I attempts to take the design, discussion and practice of a series of experimental project cases as the main line of teaching, and use mobile app, course Wechat learning group and "rain class" "enterprise Wechat" "Tencent class" and "Tencent conference" and other real-time online interactive technologies based on mobile Internet to build online and offline deep integration flipped course teaching mode. This paper attempts to build an active learning mode of thinking in practice and asking questions in practice with students as the center, so as to cultivate the technical talents who are good at asking questions and thinking, good at digital design conception, understanding the implementation steps of the project, familiar with the operation process of the project, and have the ability of innovation and hands-on practice.