The invention provides a wireless access control method capable of lowering 'signaling storm'. According to the method, for the diversity of future wireless network services, through adoption of differentiated quality of service (QoS), network performances can be improved, and the trouble of 'signaling storm' is prevented; for a small traffic long-time online service, resource occupancy is reduced through resource reallocation of different services and internal service quality re-consultation of the same services; and for a voice service or a short message service, through the resource reallocation of different services, particularly access preemption and reduction of quality, resource availability is realized, and the QoS of the voice service or the short message service is improved. Through adoption of the method, when the resource of a cell is in congestion, the access rate of the voice service or the short message service is improved, the resource occupancy rate of small traffic long-time online service is lowered, the QoS of other services is guaranteed to the greatest extent, and the income of operators is increased remarkably.