A multi-functional shutter, wherein, the top of the window frame is hinged with the shutter body; sliding chutes are provided on both side walls of the shutter body, and are corresponding to the bearing rods provided on the lateral wall o fhte window frame; the shutter body is composed of shutter storehouses, shutter leaves, sliding guide rods, an upper guiding rail, a lower guiding rail and the like; shutter storehouses for containing shutter leaves are respectively provided at the right and left sides of the shutter body, and the shutter leaves and the sliding guide rods are vertically provided between the upper guiding rail and lower guiding rail; and the shutter leaves are in flexible connection with the sliding guide rods through the shutter lock body. This invention skillfully flexibly connects the shutter leaves and the sliding guide rods, can facilitate leaf rotation to achieve light modulation and ventilation functions; can fold both shutter leaves and sliding guide rods in the shutter storehouses to achieve natural ventilation; shutter leaves can also be conveniently divorced from the sliding guide rods to fold the shutter leaves in the shutter storehouses, for using as an anti-theft window by a sliding guide; the shutter is opened, and supported by a window frame hinge bearing rod, and the shutter opening angle can be modulated to realize the objective of sun-shading and rain-proof.