Well PBR01 is a geothermal exploration demonstration well organized and implemented by Henan Nonferrous Metal Geology and Mineral Resources Bureau in the north of Pingdingshan. The completion depth is 2248.56 m and the final hole diameter is 216 mm. In the process of drilling， there were some problems， such as water gushing， leakage， collapse and stone falling， water sensitive instability， low efficiency of core recovery. This paper introduces the construction of the well from the aspects of geological formation， well structure design and drilling technology， and summarizes the achievements. By improving the performance of drilling fluid and plugging technology， improving the coring technology in hard formation， balanced cementing and other measures， the problems encountered in the construction were solved， and some experience and technology were accumulated for the middle and deep geothermal drilling in this area in the future.