The invention aims to provide a movable type mobile phone antenna apparatus. The movable type mobile phone antenna apparatus comprises a back shell which coats a mobile phone, wherein a mobile phone placement cavity is formed in the front side in the back shell; linear antenna rods are fixed on the lower parts at the left and right ends on the back side in the back shell; telescopic pull rod antenna rods are connected with the top parts of the linear antenna rods, and the pull rod antenna rods are positioned on the upper parts at the left and right ends on the back side in the back shell; a signal amplifier is arranged above the back shell; the signal amplifier is connected with the top ends of the pull rod antenna rods, and the signal amplifier is tightly attached to the top of the back shell; a connecting strip is connected with the bottoms of the left and right linear antenna rods in the back shell; and a plug is connected with the bottom of the connecting strip. When the mobile phone is placed in the front side in the back shell and when the signal is relatively weak, the plug is inserted into an earphone jack of the mobile phone, and then the signal amplifier is pulled upwards to drive the pull rod antenna rods to be pulled upwardly, and a signal collection block used for signal collection is arranged on the top of the signal amplifier, so that the signal can be well reinforced and amplified; and the movable type mobile phone antenna apparatus is simple and easy to operate, and convenient to carry.