Osteosarcoma stem cell molecular marker CD24 and application thereof

The invention relates to an osteosarcoma stem cell molecular marker CD24 and application thereof. The molecular marker comprises a CD24 gene or CAD24 protein. The molecular marker CD24 is used as an osteosarcoma stem cell molecular marker, a product for detecting CD gene expression is used for detecting the CD24 gene expression level in a to-be-measured osteosarcoma tissue sample, the CD24 gene expression level in the to-be-measured osteosarcoma tissue sample is compared with that in the normal para-carcinoma tissue, the progression of the osteosarcoma disease is diagnosed, assessment and prognosis are conducted, the marker has good specificity and high sensitivity, and a brand-new approach is provided for osteosarcoma diagnosis and/or treatment.