We have measured gamma ray in soil for four selected area which are the Klongnonglake’s field, the gardent around the 3rd and 4th woman dormitory of Naresuan University , Panwangmaprang Wangpong of Phechaboon province and Suriya mining of Phechaboon province . In-situ gamma ray spectroscopy using high-purity germanium (HPGe) detector; a standard way in determining K-40 , U-238 , and Th-232 in soil . The dose rate of In-situ gamma ray spectroscopy of K-40 ( 296.00-629.00 Bg/kg) , U-238(209.79-296.00 Bq/kg) and Th (29.60-74.00 Bq/kg).The soil samples were air-dried sieved through a fine mesh, sealed in plastics breakers, and measured in laboratory using Gamma Spectroscopy, elemental concentrations were determined for K-40 (121.50-636.20 Bq/kg) , U-238(116.56-246.36 Bq/kg) and Th-232(15.40-67.74 Bq/kg). We have then compared the dose rate of our samples to that of In-situ gamma ray spectroscopy and gamma spectroscopy in laboratory we found that both rates agree well.