The invention discloses a shielding cover and a terminal. The shielding cover comprises a plurality of metal layers. The adjacent first metal layer and the second metal layer in the plurality of metallayers are in a concave state. The second metal layer is arranged in the concave state of the first metal layer. At least a part of the first metal layer is parallel to at least a part of the secondmetal layer. A plurality of insulating layers, a first insulating layer located in the first metal layer and the second metal layer among the plurality of insulating layers; The first metal layer, thesecond metal layer and the first insulating layer form a capacitor, one of the first metal layer and the second metal layer is connected to the positive electrode of the power supply module in the terminal to form a capacitor positive electrode, and the other is connected to the negative electrode of the power supply module in the terminal to form a capacitor negative electrode. According to theinvention, a multilayer shielding cover is designed as a carrier of the capacitance, when the terminal equipment is powered down, the stored electric quantity is utilized to slow down the voltage change with time when the terminal equipment is powered down, and the important data is backed up by the stored electric quantity.