The present application provides progenitor cells and a preparing method thereof. The preparing method comprises obtaining a tissue sample containing myometrium from uterus, treating the tissue sample with collagenase, and culturing the treated tissue sample to obtain the progenitor cells, wherein the progenitor cell is multipotent and immunomodulatory. The present application also provides a method for treating a degenerative disease, an ischemic disease or a disease caused by abnormal immune response comprising administering the progenitor cells to a patient subjecting the disease.
