以提蛹油和蛹蛋白后的蚕蛹壳杂物为原料，采用改进工艺提取蛹甲壳素和制备蛹壳聚糖．研究了脱乙酰基时碱液浓度、反应时间和温度对制备蛹壳聚糖的理化性质影响．结果表明，改进工艺不仅生产周期短，蛹甲壳素得率高，而且蛹壳聚糖的粘度高、分子量大，比虾、蟹壳的壳聚糖具有更好的应用前景． Taking the pupae and pupae protein of pupa oil and pupa protein as raw materials, an improved process was adopted to extract pupa chitin and prepare chitosan. The effects of alkali concentration, reaction time and temperature on the physicochemical properties of chitosan were studied. The results show that the improved process not only has short production period, high pupa chitin yield, but also high viscosity and large molecular weight of chitosan, which has a better application prospect than chitosan in shrimp shell and crab shell.