Wireless transmission time delay measurement method and device, network equipment and terminal

The invention provides a wireless transmission time delay measurement method and device, network equipment and a terminal. The method comprises the following steps: network equipment receives current wireless channel index information reported by a plurality of terminals respectively, and screens out a target terminal from the plurality of terminals based on a comparison result between the current wireless channel index information of each terminal and preset wireless channel index information corresponding to a target service type; the network equipment sends the first time delay measurement packet to the target terminal and receives a second time delay measurement packet fed back by the target terminal; the first time delay measurement packet carries a sending timestamp, and the second time delay measurement packet comprises the first time delay measurement packet and an arrival timestamp of the first time delay measurement packet; and analyzing the second time delay measurement packet to obtain a sending t