A multichannel fiber-optical Fabry-Perot (F-P) demodulation system based on non-scanning correlation demodulation using white light interfered F-P sensor is proposed. This system uses a Fizeau interferometer and a linear array CCD to achieve F-P demodulation. High speed demodulation is realized by means of enhancing optical energy utilization efficiency with symmetrical optical system and improving hardware system′s signal-to-ratio. The prototype of non-scanning correlation demodulation fiber-optical F-P demodulator is made and tested. The testing results show that the demodulation resolution of the prototype is 8 nm, the stability is 7.5 nm and the demodulation speed is up to 1.5 kHz. This method provides a feasible solution, which achieves high demodulation speed and expands fiber-optical F-P demodulator′s application fields.