A foreign matter inspection device, comprising: container holding members configured to hold cylindrical containers filled with liquid; rotating devices configured to rotate the containers, said rotating devices each including a rotation control unit that controls rotation of the respective container holding member; irradiation beam irradiating devices configured to irradiate beams to the containers; cameras configured to photograph foreign matter mixed in liquid in the containers; and a foreign matter detecting unit configured to detect the foreign matter from photographed images, characterized in that each holding member is configured to hold a container such that a rotational axis, about which the container rotates, extends horizontally or at a constant acute angle of up to 15° depending on liquid properties and a shape of the container relative to a horizontal plane, each rotation control unit is configured to rotate the container through a selected rotational angle to move the foreign matter upward in the vertical direction along with an inner wall of the container, and to stop rotation of the container after rotation through said selected rotational angle, each camera is configured to produce images by continuously photographing contents of the container for a predetermined time period after the container is stopped from rotating, and the foreign matter detecting unit is configured to acquire an existing foreign matter movement locus from said produced images and to detect presence of the foreign matter in the liquid of each container in accordance with the acquired foreign matter movement locus. container holding members configured to hold cylindrical containers filled with liquid; rotating devices configured to rotate the containers, said rotating devices each including a rotation control unit that controls rotation of the respective container holding member; irradiation beam irradiating devices configured to irradiate beams to the containers; cameras configured to photograph foreign matter mixed in liquid in the containers; and a foreign matter detecting unit configured to detect the foreign matter from photographed images, characterized in that each holding member is configured to hold a container such that a rotational axis, about which the container rotates, extends horizontally or at a constant acute angle of up to 15° depending on liquid properties and a shape of the container relative to a horizontal plane, each rotation control unit is configured to rotate the container through a selected rotational angle to move the foreign matter upward in the vertical direction along with an inner wall of the container, and to stop rotation of the container after rotation through said selected rotational angle, each camera is configured to produce images by continuously photographing contents of the container for a predetermined time period after the container is stopped from rotating, and the foreign matter detecting unit is configured to acquire an existing foreign matter movement locus from said produced images and to detect presence of the foreign matter in the liquid of each container in accordance with the acquired foreign matter movement locus.