The natural bridges are classified into 4 types in this paper on the basis of their surrounding rocks (dissoluble rock or indissoluble rock), scale parameters (the height of bridge, the height and span of bridge arch), development characteristics of river valley under the bridge(perennial, seasonal river or enneri), and formation mechanism (at surface or underground). A brief description is also made concerning the types, distribution patterns, scale parameters, characteristics of landscape combination and comparison of typical karst natural bridges discovered in China in recent years. Based on generalizing, comparing and analyzing the tourism development of the typical karst natural bridges in China, this paper brings forward the scheme for tourism development of karst natural bridges as the longitudinal delamination mode.