A novel method for multiplexing intensity-type fiber-optic sensors using wavelength division multiplexing (WDM) and spatial division multiplexing (SDM) is proposed and demonstrated. A variation of +/- 0.2 dB at a loss of -10.95 dB is obtained, which is comparable with that obtained by the traditional method. The experimental results show, that the sensor at the up-leading fiber has no influence on the sensor at the down-leading fiber. (C) 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 432-435. 2009: Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24071