An alkaline storage cell has a positive electrode, a negative electrode containing a hydrogen storage alloy, and an alkaline electrolyte. The hydrogen storage alloy has a composition expressed by a general expression: Ln.sub.1-.alpha.Mg.sub..alpha.Ni.sub..beta.-.gamma.-.delta.T.sub..gamma.A- l.sub..delta., where Ln represents at least one element chosen from a group consisting of La, Ce, etc., T represents at least one element chosen from a group consisting of V, Nb, etc., and subscripts .alpha., .beta., .gamma. and .delta. represent numerical values which satisfy 0.05<.alpha.<0.12, 3.40.ltoreq..beta..ltoreq.3.70, 0.01.ltoreq..gamma..ltoreq.0.15 and 0.15.ltoreq..delta..ltoreq.0.35.