This report describes the selection of materials and the determination of structure about adiabatic bush used for《761》sounding rocket nozzle. Particularly，the selection of some main technological paramenters is discussed when the adiabatie bush is made by compression molding method. A great number of testing data prove that the structure of adiabatic bush is reasonable，the technological process is convenient，operation is reliable，so that，it can be used for adiabatic bush in《761》sounding rocket nozzle and other weapons.