Based on the developed ratio of nano silica adhesive, 21 adhesive tensile specimens and 20 carbon fiber reinforced composite(CFRP) laminate/steel plate double lap specimens cured at room temperature were fabricated, and the tests of tensile mechanical indexes of adhesive and bearing capacity、interfacial shear stress distribution、 effective bonding length、bond slip constitutive of the lap joint specimens were carried out. The influence of the type and amount of curing agents on the bond behavior of CFRP laminate/steel plate lap specimens were obtained. The results show that the tensile strength of nano SiO2 epoxy adhesives with different type and amount of curing agents cured at room temperature were GY34 (adhesive based on 1∶2 compouding of condensed amine 105 and amino terminated polyoxypropylene D230)>GY35 (adhesive based on amino terminated polyoxypropylene D230)>GY31 (adhesive based on condensed amine 105)>GY2 (adhesive based on improved phenalkamine GR07)>GY33 (adhesive based on 1∶1 compouding of condensed amine 105 and amino terminated polyoxypropylene D230)>GY1 (adhesive based on aromatic amine BD11 )>GY32 (adhesive based on 2∶1 compouding of condensed amine 105 and amino terminated polyoxypropylene D230).The shear capacity of the CFRP plate/steel lap specimens were GY34 S>GY31 S>GY35 S>GY2 S>GY33 S>GY1 S>GY32 S.The failure mode of CFRP/steel lap specimens GY31 S、GY35 S、GY34 S were CFRP laminate delamination, because the bond strength of the interface adhesive layer was greater than the interlaminar shear strength of the CFRP laminate. The effective bonding length of the CFRP laminate/steel plate lap specimens were 5080mm. The bond slip curves of the CFRP steel lap specimens glued by epoxy adhesives with four single curing agents were bilinear triangular models. The bond slip curve of the CFRP plate/steel plate joints glued by GY34 was a trilinear rectangular trapezoid, interface toughness was improved.