Abstract: A new kind of high damping viscoelastic material which can co-cure with glass fiber/BA9913 epoxy resin prepreg in low-temperature was investigated by the orthogonal test. After the high damping material was dissolved in tetrahydrofuran (THF)dissolvant to form viscoelastic material solution. The double-side brush coating process was developed to make the glass fiber/BA9913 epoxy resin composites into prepreg with damping membrane. According to the design layer, the embedded low-temperature co-curing high damping composite specimens were manufactured on the basis of autoclave curing process. The modal tests and interlaminar shear tests were used to verify the validity of the processing technology and viscoelastic material ingredient presented in this paper. The first order modal loss factor of specimen is up to 7.2%. The conclusions lay the foundation for the wide application of embedded low-temperature co-curing high damping composites.