A splash guard (25) of a machine tool for preventing chips generated when a workplace is machined by the machine tool or coolant from being scattered includes a rear cover (27) mounted on a rear of a bed (13) of the machine tool installed on the floor surface and defining a partition for a rear side of the machining area, and a front cover (29) defining a partition for a front side and lateral sides of the machining area. The front cover (29) is configured of a lower cover (31) placed on the bed (13) of the machine tool, and an upper cover (33) placed above the lower cover (31). The upper cover (33) has a plurality of legs (35) extending downward from the lower end thereof so that the upper cover (33), when arranged above the lower cover (31), is supported on the floor surface by the plurality of legs (35).