Abstract: With the development of science and technology, a variety of geophysical methods are increasingly used in the karst explorations. The commonly used test methods of geophysical exploration include high-density electrical method, transient surface wave method, electromagnetic wave CT detection and geological radar, etc. In view of the complexity of the karst terrain investigations, a single geophysical method is difficult to fully meet the exploration requirements. To overcome the limitations of a single method, the comprehensive application of multiple geophysical methods can effectively resolve this problem. Combined with the complementary verification of the traditional drilling, it has become a reliable option for the current karst investigation methods.

Key words: Karst Exploration, High Density Electrical Method, Transient Surface Wave Method, Drilling； Geophysica