The rheological properties of functional Gemini surfactant propanediyl-1,3-bis(dihydroxylethyldodecylammonium bromide) (12(2OH)-3-12(2OH)2Br) in the presence of small amount of traditional carboxylate surfactant, Sodium Laurate (SL), Sodium Myristate (SM) and Sodium Palmitate (SP), respectively, were investigated by steady state and dynamic rheological measurements at 25 oC. It was found that the addition of small amount of anionic surfactants has an obvious effect on the viscoelasticity of 12(2OH)-3-12(2OH)2Br solutions. The molar ratio (β) of anionic surfactant to cationic surfactant in mixed solution was 0.3, the zero shear viscosity got a maximum, 12.35 Pas and the G΄∞ was 31.88 Pa. When β=0.4, G΄∞ was 14.67 Pa. The sequence of solution viscoelasticity was SL/12(2OH)-3-12(2OH)2Br >SM/12(2OH)-3-12(2OH)2Br >SP/12(2OH)-3-12(2OH)2Br. When the concentration of 12(2OH)-3-12(2OH)2Br was 60 mmol/L, the zero shear viscosity was 33.92 Pas and G΄∞ was 46.41 Pa in the mixtures of SL/12(2OH)-3-12(2OH)2Br where β was 0.3, respectively.