AUTOMATIC ANALYSIS DEVICE

An analysis unit analyzes a sample inside an area defined by partition walls. An inside environment control device controls the state of the environment inside the analysis unit. The states of the environment inside and outside the analysis unit are measured, and a door is provided in a partition wall between the inside and the outside of the analysis unit that allows access to the analysis unit from the outside. A control device controls whether the door can be opened/closed, and opening of the door is prohibited when the analysis unit contains a sample that has not been completely analyzed. As a result, it is possible to suppress the effects of the environment outside an inspection device on the environment inside the inspection device and to suppress reductions in the accuracy of inspection results due to changes in the environment inside the inspection device.