Abstract: A type of LTM resin system, which can be cured at low temperatures but is high temperature resistant, Xufyg series was formulated in this work, whose heat properties,curing degree and T_g varying with storage time at room temperature and curing time at 60℃ were reported by using DSC and DMTA.According to the result,Xufyg-44 is selected as representative.Then the curing processing of Xufyg-44 is decided by DMTA scanning. When it is used for manufacturing composite articles, the curing temperature can be lower than 70℃, while the final cured product has a glass transition temperature higher than 200℃. The mechanical properties of the resin casts and the dimension stability of composite articles during curing and post curing are found well.