The invention provides a high-sensitivity telephone receiver vibrating diaphragm which comprises a vibrating diaphragm body. The vibrating diaphragm body comprises a fixing portion, a middle portion and a connecting portion, a fixing zone with fixing protrusions is arranged on the fixing portion, an annular connecting protrusion is arranged on the connecting portion, a connecting groove is formedin the lower end surface of the connecting protrusion, a primary reinforcement portion and a secondary reinforcement portion are arranged on the connecting portion, the primary reinforcement portion comprises a plurality of fan-shaped primary reinforcement protrusions, and the secondary reinforcement portion comprises a plurality of ring-shaped secondary reinforcement protrusions. The high-sensitivity telephone receiver vibrating diaphragm has the advantages that the high-sensitivity telephone receiver vibrating diaphragm is simple in structure and low in processing difficulty; the adhesion areas can be enlarged by the fixing protrusions on the fixing portion, and the connection strength and the stability further can be improved; the connecting protrusion can be correspondingly connected with a voice coil, the position of the voice coil can be clear at a glance after being connected with the connecting protrusion, accordingly, the adhesion areas can be enlarged, and quality detection can be facilitated; the high-sensitivity telephone receiver vibrating diaphragm is provided with the multistate reinforcement portions, accordingly, the rigidity and the strength of the high-sensitivity telephone receiver vibrating diaphragm can be improved, the area of the high-sensitivity telephone receiver vibrating diaphragm can be increased, internal damping can be enlarged, and distortion canbe reduced; the sensitivity of a telephone receiver can be stabilized, and the voice quality can be guaranteed and improved.