Abstract: The research progress of the molybdenum-based composites prepared by powder metallurgy (PM) technology was summarized in this paper, the common reinforcements of the molybdenum-based composites and the effects of the reinforcements on the properties of the molybdenum-based composites were introduced. The preparation technology of the molybdenum-based composites were emphatically described, including the technology of preparing molybdenum powders, the method of preparing composite powders, and the technology of powder forming and densification. The advantages-disadvantages and effects of the preparation technology on the molybdenum-based composites were studied. The problems existing in preparing the molybdenum-based composites by PM were summarized, and the development directions of the molybdenum-based composites by PM were prospected.