A phase-shifted chirped fiber Bragg grating with two π phase shifts was studied theoretically and experimentally.The grating was calculated by F matrix,based on which the properties of the spectra were analyzed.The phase-shifted chirped fiber Bragg grating has a transmission spectrum with dual-wavelength peaks.The wavelength position of the peaks is directly dependent on the position of the π phase shifts.The linewidth of the peaks increases only with the chirp of the grating,and is not related with the wavelength difference of the two peaks.Due to the local character of chirped fiber gratings,the design of the phase-shifted chirped fiber Bragg gratings is simple.A phase-shifted chirped fiber Bragg grating with two π phase shifts was fabricated by ultraviolet scanning with a phase mask.The wavelength difference,the extinction ratio,and the 3dB linewidth of the two peaks in the transmission spectrum are 8nm,20dB and 0.08nm,respectively,which agree with the theoretical design.