The purpose of the present invention is to provide a technique for evaluating the condition of blood in a simple manner and with high accuracy. Provided is a blood condition analysis device for analyzing the condition of a blood sample, wherein the blood sample is analyzed in the form of a mixture with at least one medicine selected from the group consisting of an anticoagulation treatment cancelling agent, a coagulation activator, an anticoagulating agent, a platelet activator and an anti-platelet agent, said device being equipped with a medicine addition amount control unit for controlling the amount of the medicine to be added to the blood sample on the basis of the hematocrit value and/or the hemoglobin level in the blood sample.