Automatic analysis device

An automatic analysis device which reacts a specimen with a reagent and measures a reacted reaction solution, the device comprising:

• a processing unit configured to perform a treatment on a specimen before an analysis of the specimen;
• supply equipment configured to supply the reagent to a reaction vessel disposed in the processing unit;
• a liquid temperature adjusting device configured to adjust the temperature of the reagent supplied to the reaction vessel by the supply equipment;
• a first temperature detection unit configured to detect a temperature of the air within the processing unit;
• and
• a second temperature detection unit which is disposed within the liquid temperature adjusting device and is configured to detect a temperature of the reagent supplied to the processing unit as a second temperature;
• wherein the liquid temperature adjusting device is configured to execute temperature adjustment of the reagent based on a first temperature detected by the first temperature detection unit;
• and
• wherein the liquid temperature adjusting device is configured to determine a target value of the second temperature based on a relationship between the first temperature and the second temperature and execute temperature adjustment based on a difference between the second temperature and the target value such that the second temperature is adjusted toward the target value.