Abstract: The important physical properties of the injection of polyphase liposome of homoharringtonine (HH), named 139 number 5, the phase transition temperature, the rheopogical properties and influence of pH on the electrical charges were studied. The injection appeared to be Bingham type fluid at room temperature and tended to become Newton type fluid with increase of temperature. The result measured by electrophoresis showed that the particle mobility of the system increase with the pH of the medium to a certain extent.