Abstract: Due to being less influenced by surface roughness and being sensitive to surface and sub-surface defects, creeping wave testing has become an effective supplement to conventional ultrasonic testing. The application of creeping wave in the testing fields of strut porcelain insulator, welding and bolt was introduced, on the basis of current research progress at home and abroad. Its effectiveness in these fields was proved by all the testing cases. With the further research and experiment for the creeping wave theory and testing instrument development, creeping wave testing shall be applied more and more popularly in nondestructive testing.