To provide a portable machine which is both slid and rotated, and forms a closed posture by superposing one of cases on the other case in a turned-over posture.

The portable machine includes a sliding mechanism for sliding a first case and a second case so that they can be opened/closed relatively in a linear direction while they are superposed, a rotating mechanism for rotating the first and second cases so that they can be opened/closed in the direction orthogonal to the linear direction, and a turn-over mechanism for turning one of the first and second cases from the other case. The first and second cases are relatively linearly slid or rotated to form a closed posture and an open posture. In addition, one case is superposed on the other case while turned-over to form the closed posture. Thus, the problem is solved.