The blending behavior of a monofluoroalkyl phosphate surfactant [H(CF2)6CH2OPO(ONa)2, DFH-PS] against inorganic salt and general hydrocarbon base surfactant was investigated through the measurements of surface tension. The research result shows that the surface tension at critical micelle concentration (cmc) of DFH-PS, γcmc, is 23.73 mN/m. Electrolyte, such as NaCl, can decrease the γcmc to 21.62 mN/m when the concentration of NaCl aqueous solution is 0.2 mol/L. Blending with anionic hydrocarbon based surfactant, sodium dodecyl sulfate (SDS) could reduce the γcmc to 22.22 mN/m when the molar ratio of DFH-PS to SDS is 5:1. Octyphenol polyoxyethylene ether (OP-10) can reduce the γcmc to 27.0 mN/m when the molar ratio of DFH-PS to OP-10 is 8:1.