This paper introduces the establishment of multi-level communication network through wireless module based on link16 data link protocol in the absence of fixed center communication nodes such as base stations, thus realizing bidirectional transmission of communication front-end to control center data. Mainly using TDMA communication mechanism, by the control center to the communication node to send control commands, and in the fixed time slot to receive the corresponding data. Experiments show that when the communication node is controlled within a certain number, the communication system can get better communication effect, suitable for mine, field rescue and other non-base station under the conditions of communication.