Abstarct: The hot springs of geothermal fields have always beneficial and harmful effects for human. On the one hand these springs are as one of the most important of clean energy resources as well as therapeutic effects and the other hand, hot springs can affect on environmental by transfering toxic elements. In the Meshkin Shahr area, there are many hot springs origined from Sabalan geothermal field and the purpose of this study is to survey benefical and harmful influences of these hot springs. Hydrogeochemical studies on these springs specified that the dominant hydrochemical type of springs such as Gheynarjeh, Ilando, Khosro-Suei and Malek-Suei is Chloro-Sodic and the type of Moeil hot spring is Calcium-Sulphate. The Analysis on water of hot springs in various monthes of 2011 and compare with standard limits of drinking and irrigation water displayed these waters exceed from limits of standards as Arsenic level varies from 4 ppb in Moeil to 1951 ppb in Gheynarjeh, Chloride level varies from 0.4 ppm in Moeil to 2.1 ppm in Gheynarjeh, TDS content varies from 600 ppm in Moeil to 3570 ppm in Gheynarjeh, Boron concentration varies from 0.2 ppm in Moeil to 10.6 ppm in Gheynarjeh and 0.66 ppm in drinking water of Moeil village, plumb concentration is reached to 12 ppm in drinking water of Moeil village, Nickel concentration is reached to 1.37 ppb in drinking water of Moeil village and Phosphates concentration is reached to 12.7 ppm in drinking water of Moeil village. About therapeutic effets of these hot springs since the magnesium concentration is up to 12 ppm in all of springs, florine level is up to 2 ppm in Gheynarjeh as well as TDS content is up to 1000 ppm in Gheynarjeh, Khosro-Suei and Ilando, these springs are classified in global standards and can be beneficial in treatment of many diseases.