The study of characteristics of gamma-ray counts and one-meter ground temperature survey over the known hot-springs aimed to search for new hot-springs in unknown areas. The principles of gamma-ray count survey and one-meter ground temperature survey are dealt with in this paper. Some conclusions have been reached. Over the extensional fault, the gamma-ray counts are relatively high and the gamma-ray spectrum contains abundant uranium element. The data of one-meter ground temperature survey shows relatively high geothermal background value over the known hot-spring. Therefore, detailed field survey was conducted near the unknown area belonging to the same geo-structure. Nevertheless, the gamma-ray count is lower and the geothermal background value is well-balanced too. Chemical analyses reveal the spring water roots in shallow ground water. The fault zone has been strongly rebuilt, with a length of about 300 m at the outcrop, and this area is not suitable for the formation of heat reservoir structure.