PURPOSE: A bone density measuring device using a temperature compensation is provided to reduce bone density errors due to the change of a temperature by measuring the density of a patient using data from a first table and a second table. CONSTITUTION: A stage part(111) is installed on one side of the upper side of a body(110). A measurement position varying member(112) surrounds the heel of a foot. A calf support stand(113) is rotatably installed on one side of the body. A thermometer(115) is installed on one side of the bone density measuring device and measures an indoor temperature. A temperature input unit provides the temperature measured by the thermometer to a patient measuring unit.