Based　on　the　empirical　electron　theory　(EET)　of　solids　and　molecules　and　the　valence　electron　theory　of　biphase　interface,　the　interfacial　valence　electron　structure　of　(Ti,　Me)C/Fe　system　(Me=Mo,　W,　V,　Nb,　Ta)　was　calculated,　and　the　relationships　between　interfacial　valence　electron　structure　and　properties　were　analysed.　The　results　indicate　that　Me　could　improve　TiC/Fe　cermet＇s　interfacial　electron　density　and　interface　electron　density　difference.　It　is　beneficial　to　the　improvements　of　interfacial　wettability,　ceramic　grain-refining　and　interfacial　conjunction　and　their　ability　sequence　is　Mo,　W＞Nb,　Ta＞V;　in　addition,　Mo　and　W　can　always　improve　the　interfacial　obdurability　of　TiC/Fe　cermet.