Provided is a method for immune cell therapy, which comprises generating T cell progenitors from pluripotent stem cells bearing rearranged T cell receptor genes and transferring the T cell progenitors to a patient in need of the treatment. The pluripotent stem cells may be iPS cells (T-iPS cells) bearing rearranged T cell receptor genes. By administering T cell progenitors instead of mature T cells, effective and safe immune cell therapy can be achieved.