In recent decades，all colleges and universities to meet the needs of high-quality personnel for rapid economic development，vigorously enroll students. Though the rapid growth of the number of students and the relative lag of the traditional teaching model has produced a contradiction，the appearance of online education for postgraduate teaching mode reform provides the new ideas. Some colleges have attemptd to take the massive open online course （MOOC） to their postgraduate courses，but the effect is far from satisfactory. So some scholars pointed out that the small private online course（SPOC） may be more suitable for graduate teaching. The main purpose of this paper is on the base of the SICAS consumption theory under the network era to construct the SPOC postgraduate teaching mode in China，to take the marketing science and pedagogy theories the overlapping research and provide a theoretical basis and practical suggestions for the SPOC teaching mode.