AUTOMATIC ANALYZING DEVICE

Provided is an automatic analyzer to improve nozzle cleaning reliability even in a simple cleaning mechanism. The automatic analyzer includes a flow cell detector 202, a nozzle 201 that is connected to the flow cell detector by a flow path and aspirates or discharges liquid, a reservoir 230 that is provided with a table 231 and a table driving mechanism 232 that rotates the table or moves the table up and down, and a cleaning tank 242 that is disposed on the table. A position of the nozzle is fixed, and a cleaning water discharge port 411 that discharges cleaning water used for cleaning the nozzle is fixed such that the cleaning water can be discharged at an angle ϕ with respect to a plane perpendicular to a central axis of the nozzle. An upper part of a side wall of the cleaning tank is continuous with an upper discharge unit 401 at a side facing a discharge outlet provided in the reservoir and a spatula-shaped part 403 that projects outward the cleaning tank at a side facing the upper discharge unit.