The invention discloses application of pectolinarin in preparation of an anti-
osteosarcoma medicine and an anti-
osteosarcoma medicine preparation, and belongs to the technical field of medicines. In-vivo and in-vitro experiments prove that the pectolinarin can inhibit growth and proliferation of various
osteosarcoma cells, can promote
apoptosis of the osteosarcoma cells, can intervene the
cell cycle, can retard the cells in the G1 stage, can reduce the number of the cells in the G2 stage and can inhibit the
cell division ability; the
invasion and migration of HOS and 143B osteosarcoma cells can be inhibited; and animal experiments prove that pectolinarin can obviously inhibit the volume of
nude mouse subcutaneous 143B cytoma and can well inhibit the growth of osteosarcoma. The pectolinarin is expected to become a
medicine for treating osteosarcoma and has a wide prospect in the aspect of development of the medicine for treating osteosarcoma.