The local electric properties of quasi-1D conductorβ-Ag[0.33]V[2]O[5] were studied at ambient pressure using a nuclear magnetic resonance (NMR) and zero-field resonance (ZFR) technique. We introduce a charge-ordering (CO) model in the insulator phase and the spin structure in the antiferromagnetic phase suggested by the electric-field-gradient tensor and ZFR frequencies.