AUTOMATIC ANALYSIS DEVICE

Provided is an automatic analyzer capable of appropriately controlling most of the temperature of an incubator even when local temperature fluctuation occurs.An automatic analyzer for analyzing a specimen includes an incubator for holding a plurality of vessels that store a mixed liquid of the specimen and a reagent, a heat source for heating or cooling the incubator, a plurality of temperature sensors provided at different positions of the incubator and measuring the temperature, and a control unit for controlling an output of the heat source based on a difference between a target temperature and the highest temperature or the lowest temperature among the measured temperatures of the temperature sensors.