Automatic Analyzer

An automatic analyzer allowing a sample and a reagent to react with each other and measuring a property of a reaction solution obtained by the reaction, the automatic analyzer comprising:

• a dispensing mechanism including a nozzle that aspirates and discharges the reagent;
• a storage storing a reagent container filled with the reagent;
• and
• a control unit controlling an operation of the dispensing mechanism, wherein
• the control unit executes analysis while switching the reagent used according to an analysis item, and, when a predetermined condition is fulfilled during an analysis operation, controls the dispensing mechanism to execute a conditioning operation of lowering the nozzle to pass through an aspiration port of the reagent container of a target and lifting the nozzle.