【Objective】This study optimized the extracting technology of polysaccharides fromEuonymus bungeanus fruits and investigated the in vitro anti-tumor activity against mouse myeloma cells to provide basis for the development and utilization of E.bungeanus.【Method】The polysaccharides were extracted from fruits of E.bungeanus by water extraction and alcohol precipitation methods,and the content of polysaccharides was determined by phenol sulfate method.Single factor experiments were preformed using extraction ti...