The invention discloses a platinum complex for inhibiting cell SKOV3 and a synthesis method of the platinum complex, belongs to the technical field of medicines, and aims to provide a cell SKOV3 inhibiting platinum complex synthesized from rutaecarpine as structural basis and DMSO as an auxiliary ligand. The invention further provides a synthesis method of the platinum complex. The structural formula of the platinum complex is as shown in the description. The platinum complex can be used for preparing anti-tumor drugs.