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A room temperature fast curing epoxy resin nano-adhesive were prepared and modified by nano-SiO2 and liquid rubber CTBN.It has good shear strength value and heat-durability and also meets the conditions of room temperature and short solidified time.Compared with conventional resin mixing method,adhesive modified by nanomaterial can achieve better heat-durability which vitrification point is 4 times larger than unmodified.Microstructure and property of liquid rubber CTBN in a new epoxy resin system were investigated.The fracture surface which had lots of micropores was observed and its toughness feature was obvious.Liquid rubber CTBN dissolves in base resin.