Abstract: Experimental reSults show that platinic fatty add, cholesterol and phospholipines are three factors of forming biochemical anticarinogen. Only by making the liquid crystal state similar to biomembrane with three ingredients in a given proportion, can they play their action of raising the anticadriogenic efficiency of platinic fatty acid. On the basis of above results a model of biological liquid Crystal state was advanced. Accoarding to this model we have designed arid prepared a new anticancer agent-liposome containing linoleic platinum. It has ho found that it is a very effective antitumor agent. We expound further that the modem biophysical technology plays an important part in studying the relation between biomembrane and cancer and the therapy of cancer.