Method for producing cd4/cd8 double-positive t cells

A method for producing CD4/CD8 double-positive T cells including the following steps: (1) a step that cultures pluripotent stem cells in culture fluid and induces hematopoietic progenitor cells and (2) a step that cultures the hematopoietic progenitor cells obtained in step (1) in culture fluid containing a p38 inhibitor and/or SDF-1 and induces CD4/CD8 double-positive T cells.