Big data is bringing discipline to education. Under the guidance of digital technology, education has ushered in the upsurge of digital reform, digital course teaching has gradually entered the public's vision, and the upsurge of digital course open education is coming. The paper adopts the research methods of literature, field investigation and logical analysis, and takes the construction of digital curriculum mixed teaching course based on the platform of Superstar Learning as the research object. This paper constructs the curriculum construction ideas in three stages of "pre-class, mid-class and after-class", and draws the following conclusions through the research of blended teaching curriculum practice in the big date background: Build digital media teaching resource library, record multi-platform online teaching videos, practice dual-track mixed teaching, pre-set interactive classroom teaching activities, after-school homework to consolidate and improve classroom learning, online examination to achieve teaching effect evaluation and feedback, etc. And summed up four practical experiences of multi-style one-click check-in function to help class attendance, interactive teaching activity function to achieve subject participation, paperless online evaluation function to detect learning effect, digital courses to break the limitation of time and space. Digital technology improves the convenience of course teaching and forms a visual teaching effect. Digital technology provides new ideas for digital curriculum teaching. The existence of digital curriculum provides more possibilities for personalized learning, while hybrid teaching promotes the interaction and cooperation between students and teachers. Build an online learning platform based on big data to support computer technology, and guide students to conduct simulation and practice in the teaching process.