Functional　molecular　electronics　based　on　eutectic　gallium　&　hybull;indium　as　top　electrode　and　self-assembled　monolayer(SAM)　as　active　layer　is　one　of　the　research　hotspots　in　recent　years.　Domestically,　the　study　on　EGaIn-　based　functional　molecular　junctions(MJ)　is　still　in　the　beginning　state.　This　review　introduces　the　advantages　of　EGaIn　as　top　electrode　and　the　fabrication　of　SAM-MJ　in　detail,　and　shows　recent　workers　on　rectifiers,　memory,　opto-electrical　switches,　thermoelectrics,　and　solid-state　impedance　and　so　on.　We　analyze　the　challenges　of　EGaIn-　based　molecular　junctions　and　propose　the　future　development　directions.