An alkaline storage battery including a positive electrode (1), a negative electrode (2) using a hydrogen-absorbing alloy, and an alkaline electrolyte solution employs, as the hydrogen-absorbing alloy in the negative electrode, a hydrogen-absorbing alloy for alkaline storage batteries including at least a rare-earth element, magnesium, nickel, and aluminum, and having an intensity ratio I.sub.A/I.sub.B of 1.00 or greater, wherein I.sub.A is the strongest peak intensity appearing in the range 2.theta.=32.degree.-33.degree. and I.sub.B is the strongest peak intensity appearing in the range 2.theta.=35.degree.-36.degree. in an X-ray diffraction analysis using Cu- K.alpha. radiation as the X-ray source.