An automatic analyzer comprising: a disk rotatable by a disk driving mechanism, the disk having a plurality of holding sections for holding a plurality of containers on the circumference of the disk, the disk being adapted to rotationally move the plurality of containers in the holding sections over a plurality of rest coordinate positions that do not move when the disk rotates, wherein the number of rest coordinate positions corresponds to the number of holding sections; a reagent dispensing mechanism for dispensing a reagent into a container on the disk; a sample dispensing mechanism for dispensing a sample into the container on the disk; a container transfer mechanism for transferring a container from a magazine for mounting and arraying containers to a holding section on the disk; a container transfer mechanism movable area formed by a range within which the container transfer mechanism is capable of transferring and moving the container, wherein a plurality of the rest coordinate positions is situated within the container transfer mechanism movable area; and a computer for controlling the reaction disk driving mechanism, the container transfer mechanism, an arm of the reagent dispensing mechanism and an arm of the sample dispensing mechanism; wherein the container transfer mechanism is adapted to transfer the container to any one of the plurality of holding sections on the disk that is currently positioned in the container transfer mechanism movable area; characterized in that the computer is adapted to control the reaction disk driving mechanism and the container transfer mechanism so that the container is transferred to a holding section corresponding to a first rest coordinate position of the plurality of rest coordinates positions situated within the container transfer mechanism movable area when the container is used for a normal analysis, and the container is transferred to a holding section corresponding to a second rest coordinate position of the plurality of rest coordinates positions situated within the container transfer mechanism movable area that is different from the first rest coordinate position when the container is used for an urgent analysis in which the reaction time is shortened compared to a normal analysis. a disk rotatable by a disk driving mechanism, the disk having a plurality of holding sections for holding a plurality of containers on the circumference of the disk, the disk being adapted to rotationally move the plurality of containers in the holding sections over a plurality of rest coordinate positions that do not move when the disk rotates, wherein the number of rest coordinate positions corresponds to the number of holding sections; a reagent dispensing mechanism for dispensing a reagent into a container on the disk; a sample dispensing mechanism for dispensing a sample into the container on the disk; a container transfer mechanism for transferring a container from a magazine for mounting and arraying containers to a holding section on the disk; a container transfer mechanism movable area formed by a range within which the container transfer mechanism is capable of transferring and moving the container, wherein a plurality of the rest coordinate positions is situated within the container transfer mechanism movable area; and a computer for controlling the reaction disk driving mechanism, the container transfer mechanism, an arm of the reagent dispensing mechanism and an arm of the sample dispensing mechanism; wherein the container transfer mechanism is adapted to transfer the container to any one of the plurality of holding sections on the disk that is currently positioned in the container transfer mechanism movable area; characterized in that the computer is adapted to control the reaction disk driving mechanism and the container transfer mechanism so that the container is transferred to a holding section corresponding to a first rest coordinate position of the plurality of rest coordinates positions situated within the container transfer mechanism movable area when the container is used for a normal analysis, and the container is transferred to a holding section corresponding to a second rest coordinate position of the plurality of rest coordinates positions situated within the container transfer mechanism movable area that is different from the first rest coordinate position when the container is used for an urgent analysis in which the reaction time is shortened compared to a normal analysis.