Abstract: Reinterpreting the engineering and life reliability in geography information sciences,for the first time,we put for ward the concept of reliable spatial analysis,with an analysis of their characteristics.The reliable spatial analysis is proposed as a new research direction for GISci,and correspondingly the existing primary scientific problems,research issues,the foundational theories,and the potential application areas are identified.This research emphases on a whole process of spatial analysis with emphasis on reliability.In a broad sense,we describe a paradigm advance from uncertainties into reliability in spatial analysis.