First of all, this paper redefines "microlecture" and emphasizes that microlecture resources should be constructed flexibly on learning problems. Based on the practice of college English teaching reform, this paper designs a blended College English teaching model with the support of microlecture, and discusses the various components of the model in detail. With microlecture resources as the main assisting learning resource, the model emphasizes the effective and flexible blending of various teaching elements and learning resources, helps students understand and solve problems in the real situation, and promotes college English teaching and promotes students' English learning.