In this study the effect of nanomaterial as an additive on the index properties of active soil with various water; nanomaterial mix ratios have been presented. Active soil samples containing mixtures of water to nanomaterial of 1:250, 1:200, 1:150, 1:100 and 1:50 was prepared and the shrinkage limit, liquid limit, plasticity index, plastic limit, and free swell index were conducted using common engineering standards. Statistical test results show significant effect on free swell at 95% confidence limit in addition of different proportions of nanomaterial to the active soil. Using nanomaterial as stabilizer decreases the index properties of soil except plastic limit. The results show that liquid limit, decreased from 63.2%-47.9%, plasticity index dropped from 43.0% - 24% and shrinkage limit values dropped from 9.6%-6.8% with increase in nanomaterial percentage respectively. However, plastic limit results obtained increased from 20.6%-25.4% with the increase nanomaterial percentage. The test show that nanomaterials reduce the free swell, thus changed the swell potential from above average to moderate.