Bis(octylamidoethyl)-butane sulfonate surfactant, was prepared from an excessive 1,4-butane sultone and intermediate N,N-bis(octylamidoethyl)-amine, which was synthesized from octanoic acid, diethylenetriamine and potassium hydroxide(as a catalyst). The chemical structures of the intermediate and the surfactant were characterized by FT-IR, ESI-MS and 1HNMR.Its surface tation in different temperature was determined by pendant drop method, the results showed that critical micelle concentration (CMC) of surfactant was 1.41 ×10-3 mol/L and the minimum surface tension(γCMC) was 26.78 mN/m at 298 K. With an increase in temperature, the CMC gradually increased, γCMC and maximum surface adsorption capacity Γmax decreased. With the addition of NaCl solution (0.2 mol/L), the CMC and γCMC reduced to 4.20×10-4 mol/L and 25.51 mN/m.