阐述了研制钝感推进剂的必要性。综述了国外研制钝感推进剂的主要技术途径有：采用低感度的高能粘合剂或含能增塑剂；采用低感度的硝胺化合物；用新型高能氧化剂，如二硝酰胺铵盐ＡＤＮ、ＣＬ－２０或无相转变硝酸铵（ＡＮ）氧化剂代替ＡＰ和ＨＭＸ及其它可能的钝感技术。重点介绍了国外用烃酯类增塑剂降低推进剂感度的研究。 The necessity of developing insensitive propellant is expounded. In this paper, the main technical approaches to the development of insensitive propellants in foreign countries are summarized as follows: using low energy high energy binders or plasticizers; using low sensitivity nitramine compounds; using new high energy oxidants such as dinitramide ammonium salt ADN, CL-20 or Phaseless Ammonium Nitrate (AN) oxidant to replace AP and HMX and other possible insensitive technologies. In this paper, the foreign research on decreasing the sensitivity of propellants with hydrocarbon ester plasticizers is introduced.