Objectives:　During　Neuromuscular　Electrical　Stimulation　(NMES),　a　real-time　monitoring　method　is　urgently　needed　to　reduce　the　negative　effect　induced　by　muscle　fatigue.　Technology　or　Method:　A　novel　method　named　electrical　impedance　myography　(EIM)　is　proposed　to　evaluate　muscle　fatigue　degree　during　NMES.　The　experiments　were　performed　on　the　anterior　tibialis　muscle　on　several　voluunteers.　Two　EIM　parameters:　impedance　amplitude　(Z)　and　phase　(θ),　were　measured　in　real　time,　while　applying　six　NMES　parameter　combinations.　The　mean　power　frequency　(MPF)　of　the　surface　electromyography　(sEMG)　was　selected　for　verification　of　the　proposed　method.　Results:　Z　and　θ　of　EIM　signals　decreased　significantly　after　NMES　(p　©　2016　IEEE.