Based on dual simply supported beams structure a fiber Bragg grating acceleration sensing probe was designed.The sensing probe elastic system was composed of dual simply supported beams,dual fiber Bragg gratings and a mass block.The differential structure compensation method was used to solve the problem of temperature and strain cross sensitivity.This sensing probe was characterized by simple structure and ideal linearity. The first order resonant frequency reached to 525 Hz.It had the ability to resist electromagnetic interference,phase noise and light path power fluctuation. The measurement sensitivity of this probe was twice as much as single fiber Bragg grating accelerometer.