Protective shell of outward folding screen electronic equipment

The invention provides a protective shell of an outward folding screen electronic device. The protective shell comprises a middle part, a first side part and a second side part, the middle part is connected with the first side part and the second side part, and the middle part can rotate around the second side part, so that the first side part, the middle part and the second side part define a containing space with an opening, or the protective shell is opened; when the protective shell defines the accommodating space, the opening is opposite to the middle part; the protective shell is used for being arranged on the outward folding screen electronic equipment in a sleeving mode. When the external folding screen electronic equipment is in a folding state, the external folding screen electronic equipment is accommodated in the accommodating space, the first side part and the second side part respectively wrap two ends of the external folding screen electronic equipment, and a display area of the external foldin