The postgraduate joint cultivation base is a practice platform for postgraduate students to train their practical and innovative abilities. This paper analyzes the present situation of postgraduate cultivation base jointed by industry-university-institute. Under the development of social demands, from the three aspects of functional positioning, service environment and participants, it discusses the connotation construction of joint cultivation base based on demand shifting. The vitality of the joint cultivation base should be fully stimulated, the needs of multiple participants should be met, and the joint cultivation base should make itself a "incubator" for the training of high-level talents urgently needed by the society. Based on the "demand-meet" structure framework, this paper puts forward a specialized, sustainable and multi-cooperation construction path of the joint cultivation base in view of the function demands, service demands and benefit demands.