Provided is an information input apparatus capable of inputting rotation angles of three degrees of freedom. The information input apparatus includes: an outer shell section having a structure of a hollow sphere； a connection section attracting and rotatably supporting the outer shell section； and a rotation detection section configured to detect a rotation angle of the outer shell section. The rotation detection section includes at least one or a combination of two or more of an acceleration sensor, an angle sensor, and a magnetic sensor. The rotation detection section is arranged in a vicinity of a center of the sphere and configured to detect rotation angles of three degrees of freedom of the outer shell section. The outer shell section includes an opening section into which a finger of a user is inserted, and the rotation detection section is configured to detect the rotation angle when the outer shell section is manually operated by the inserted finger.
