Abstract: The curing reaction of hydrogenated terpinene maleic anhydride(HTMA)with bisphenol A epoxy resin was investigated by FT-IR spectrum, and the curing degree, gelation time and its affecting factors were analyzed. The experiment results indicated that the cross-linking mechanism of hydrogenated terpinene maleic anhydride with bisphenol A epoxy resin was similar to anhydride curing with epoxy resin in the presence of accelerants. The curing degree was increasing as the curing temperature was arisen and the curing time was delayed, and the gelation time was shortened obviously as the curing temperature was arisen and the dosage of accelerants was increased. HTMA cured with bisphenol A epoxy resin completely at 110℃ in 8 h. HTMA cured with epoxy resin gently and slowly,owing to the synergistic effect of steric hindrance effect and stereo-electronic effect.