In this paper, a novel technique for the simultaneousmeasurement of strain, temperature and vibration forstructural health monitoring is demonstrated using a fibreoptic sensor system, which combines both awavelength-swept fibre laser (WSFL)system and a laser diode system using awavelength division multiplexer. An aluminium beam was placed ina thermal chamber for the simultaneous measurement of itsstrain, temperature and vibration characteristics. A fibreBragg grating/extrinsic Fabry-Perot interferometer (EFPI)hybrid sensor system with WSFL was used for the strain andtemperature measurements, while the EFPI sensor in the hybridsensor operated by a laser diode simultaneously measured thevibration characteristics of the beam.