The body fluids component measurement equipment which measures the body fluids component when the light intensity of the luminous element is made to stabilize to ideal is offered. As for this invention, being the body fluids component measurement equipment, in the litmus paper which the point it makes wear the body fluids light reflected light of the light which radiates by the luminous element and the aforementioned luminous element which radiate following to the luminous condition which is decided by the decisive section and the aforementioned decisive section which decide the luminous condition in order to be stabilized the light intensity where the aforementioned luminous element radiates on the basis of the temperature which was measured by the thermometry section and the aforementioned thermometry section which measure the temperature in the vicinity of the light absorbent element and the aforementioned luminous element which absorb light, to have with the drive control section which controls the drive of the luminous element, the aforementioned radiationAfter the light intensity which radiates by the element stabilizes it features that measurement of the body fluids component is started.好適に発光素子の光量を安定させた状態で体液成分を測定する体液成分測定装置を提供する。本発明は、体液成分測定装置であって、体液を点着させた試験紙に光を発光する発光素子と、前記発光素子によって発光された光の反射光を受光する受光素子と、前記発光素子の近傍における温度を測定する温度測定部と、前記温度測定部によって測定された温度に基づき、前記発光素子が発光する光量を安定化させるための発光条件を決定する決定部と、前記決定部によって決定された発光条件に従って発光素子の駆動を制御する駆動制御部とを備え、前記発光素子によって発光される光量が安定した後に体液成分の測定を開始することを特徴とする。
