As the research of board and top management team has been isolated,the paper integrates these two subjects into the frame of upper echelons.The paper rebuilds the concept of upper echelons,and reviews the related research of upper echelons.Based on the limit of the traditional research,the paper suggests a research frame of the relationship between upper echelons,team process and firm performance from panel interaction between board and TMT and the internal process of tacit characteristics and the mechanism of upper echelons' faultlines.