The invention discloses a hollow built-in magnetic assembly for controlling an overturning angle of a shutter roller. The magnetic assembly comprises a base, wherein a window frame is fixedly installed at the upper end of the base, a servo motor is fixedly installed at the left end of the window frame, a control screen is fixedly installed at the front end of the window frame, a protective interlayer is fixedly installed at the inner end of the window frame, a central window lattice is fixedly installed at the inner end of the protective interlayer, driven window lattices are fixedly installedat the positions, located at the inner end of the protective interlayer, of the outer side of the central window lattice, and the driven window lattices are distributed on the outer side of the central window lattice at equal intervals. The hollow built-in magnetic assembly for controlling the overturning angle of the shutter roller is installed in a built-in mode, damage to exposed parts is reduced, practicability is high, magnetic force can be used for driving a driven roller to rotate in a following mode, angle overturning of a shutter is completed, manual operation is not needed, convenience is high, the overturning angle of the shutter can be proper according to the external illumination degree, the automation degree is high, the service life is long, and the safety is good.