Objective: The paper was fixed the effective fractions and components about resisting tumour in Ranunculus ternatus Thunb. Method: The chemical components in Ranunculus ternatus Thunb. were extracted and separated by the technique of solvent-refining. To investigate the pharmacological effect on antitumour with multiguide multitarget in vivo and vitro,we adopted two methods of MTT and SRB, and set up two models of animal S180 sarcoma and transplant tumour H22 liver cancer.The effective fractions were separa...