Electrides　have　attracted　significant　attention　in　the　fields　of　physics,　materials　science,　and　chemistry　due　to　their　distinctive　electron　properties　characterized　by　weak　nuclear　binding.　In　this　study,　based　on　first-principles　calculations　and　symmetry　analysis,　we　report　that　the　pure　zirconium　with　alpha-phase　(alpha-Zr)　is　expected　to　be　the　electrically　neutral　electride　with　topological　nodal　loop.　Furthermore,　the　nodal　loop　located　at　the　k(z)　=　0　plane　exhibits　a　clear　drumhead-like　surface　state.　The　energy　levels　of　the　topological　nodal　loop　can　be　regulated　by　applying　uniaxial　strain,　resulting　in　the　topological　nodal　loop　being　closer　to　the　Fermi　level.　Remarkably,　the　work　function　of　the　electride　Zr　shows　a　significant　anisotropy　along　the　(001),　(100),　and　(110)　directions,　particularly　with　a　low　work　function　of　3.14　eV　along　the　(110)　surface.　Therefore,　we　predict　that　alpha-Zr　provides　a　promising　platform　for　future　research　on　topological　electrides.