Dynamic behavior of surfactant molecules, sodium dodecyl sulfonate (SDSN), cetyl trimethyl ammoniumbromide (CTAB) and triton X-100, and their micelles in water solution at various concentrations were studied bychemical shift, self diffusion coefficient (D) and nuclear magnetic resonance relaxation (T_1 and T_2) measurements.Experimental results show that there exist turning points at surfactant concentration (C) nearby the critical micelleconcentration (cmc) for all of the above-mentioned parameters, which approach the constant values when C equals 5to 10 times cmc. T_1 and T_2 measurements show that when C < cmc, Triton X-100 molecules exhibit fast isotropicmotion in water solution. After micellization, the motion of hydrophobic chains is far away from the extreme narrow-ing condition, however, the long hydrophilic oxyethylene chains move relatively freely, although their T_1 and T_2 be-come shorter in comparison with those of the molecules in mono-molecular state. The behavior of the hydrophobicchains Dynamic behavior of surfactant molecules, sodium dodecyl sulfonate (SDSN), cetyl trimethyl ammoniumbromide (CTAB) and triton X-100, and their micelles in water solution at various concentrations were studied by chemical shift, self diffusion coefficient (D) and nuclear magnetic resonance relaxation (T_1 and T_2) measurements. Experimental results show that there exist turning points at surfactant concentration (Cc) for all of the above-mentioned parameters, which approach the constant values ​​when C equals 5to 10 times cmc. T_1 and T_2 measurements show that when C