The utility model provides a camera auxiliary apparatus and shield cover thereof. It includes the base member and is used for corresponding to shield the cover the focus layer of shielding of ware setting, it divide into the first shielding portion that passs through the signal of focusing and is located to shield the layer first shielding portion is peripheral just to be used for shielding the focus second shielding portion of ware. The utility model discloses a camera auxiliary apparatus has light filling and focusing function simultaneously, has improved the effect of shooing.