Abstract:Firstly,the principles of strain measurement with fiber Bragg grating are briefly introduced in this paper.Then,the progress in strain measurement with fiber Bragg grating is detailed presented.These new methods accordingly enhance the measurement scale and accuracy,the performance of multiplexing and practicability of fiber Bragg grating.As a key role in smart structure determined by its unique characteristics,fiber Bragg grating shows its perspective.For practical application,further studies are needed,which include elongating its working longevity,searching for the simple and convenient embedding methods and implementing the high accurate and dynamic detection.