The invention relates to an 
exosome derived from human pluripotent stem cells, a preparation based on the 
exosome and use of the 
exosome and preparation, and belongs to the technical fields of 
cell biology, 
molecular biology and 
drug research and development. The human pluripotent 
stem cell exosome or the preparation based on the human pluripotent 
stem cell exosome has the uses of A, being an additive cultured 
in vitro for maintaining the stemness of adult stem cells and inhibiting the senility of the adult stem cells; B, being an additive cultured 
in vitro for maintaining the proliferative activity of various tissue 
primary culture cells; C, being applied in preparing 
medicine for treating bone and 
cartilage degenerative changes; D, being applied in preparing 
medicine for preventing the bone and 
cartilage degenerative changes; E, being applied in preparing 
medicine for treating orthopedic diseases such as osteonecrosis, bone 
nonunion, fractures, 
cartilage injuries, 
tendon injuries, frozen shoulders or 
tendon adhesion. Compared with the prior art, the exosome secreted by the pluripotent stem cells has powerful functions of promoting 
tissue cell regeneration, preventing senility andtreating bone diseases.