Drought is a phenomenon that is usually quiet and creepy, which increases due recent decades between various of drought was sensible than the other events. Therefore, understanding of the conditions through the prediction of drought and its intensities leads to decrease some unwanted costs considerably. Between the years 1951 and 2010 so are not the same statistics are statistics this research studies the meteorological drought spells by multi-dimensional comparison of 5 drought , by use of monthly rainfall data 36 Synoptic and cliamatology Stations which are related to Iran Meteorological Organization, Drought events was quantified by Standardized Precipitation Index(SPI), Percentage of Normal Index ( PNI), Deciles Index (DI), Chinese Z Index Results shows that PNI and DI in all stations have similar trends and the Curves of SPI, ZSI and CZI. By correlation, all indices of PNPI-ZSI, PNPI-RAI, ZSI-RAI, and SPI-CZI in all stations indicated high statistical correlations. So for 45 years, with 54 maps were drawn SPI index Driest years are: 1995, 2010.