To provide a biological information measuring device capable of separating the variation in the biological information caused by a disease from the variation caused by the aging, and permitting appropriate health management by giving advice on the life-style based on the separated variation caused by the disease.

The biological information measuring device comprises a biological information detecting means 1 for detecting biological information, a biological information storage means 2 for storing the information detected by the biological information detecting means 1 after a certain period of time as long as the influence of aging can be reflected, a variation quantity calculating means 3 for calculating the quantity of variation of the biological information stored in this way, a reference value storage part 4 for storing a reference value corresponding to the aging relative to the quantity of variation, and a disease estimation means 5 for assuming the variation in the biological information to be caused by a disease if the quantity of variation exceeds the reference value.