A novel high-speed fiber Bragg grating (FBG) interrogation system fo r static and dynamic measurement with a high-speed wavelength-swept laser is proposed.In this sys tem,the high-speed wavelength-swept laser is a distributed feedback (DFB) laser which is driven by a 100kHz sine wave and controlled by a 100kHz square wave.In the range from 20mA to 150mA of the current drive signal,the DFB makes a 100kHz frequency scan in the range of 1nm in spectrum.By combining wi th optical circulator, photodiode,the signal acquisition and processing part,the system has realized the static and dynamic signals measurement.In static temperature experiment,the linearity is 0.99921,and the acc uracy is 8pm.The dynamic measurement of 2kHz and 4kHz vibrations is demonstrated with a measuring speed as fast as 100kHz. Experiments show that the system has a high precision and a good stability for d ynamic signal.With a 100kHz demodulation,we can give a 0－50kHz frequency spectrum analysis.The results de monstrate that the fiber Bragg grating interrogation system is efficient and stable.It has competitive a dvantages in terms of simple structure,low cost,as well as the detection accuracy for high-speed FBG d emodulation as fast as 100kHz.