A　novel　type　of　integrated　filtering　algorithm　named　morphology-wavelet　filter　which　is　applied　in　short　circuit　fault　detection　In　low-voltage　systems　is　presented　in　this　paper.　The　proposed　morphology-wavelet　filter　combines　the　quadratic　B-spline　wavelet　transform　and　the　generalized　morphological　filter　with　multiple　structuring　elements,　so　it　has　the　excellent　capability　in　removing　various　kinds　of　interference,　protecting　the　properties　of　short　circuit　fault,　and　decreasing　the　computational　complexity.　The　distinguished　feature　of　this　kind　of　algorithm　makes　its　successful　application　in　the　short　circuit　fault　detection　in　low-voltage　distributed　systems.　The　short　circuit　fault　detection　equipment　based　on　high-performance　DSP　is　also　presented　in　this　paper　and　the　real-time　implementation　of　the　proposed　algorithm　has　been　realized　on　this　equipment.　©　2005　IEEE.