A novel service model of land quantum mobile communication systems and the scheme of quantum multiplexing relay were proposed. The two quantum entanglement purification method, one is based on the quantum controlled-not gate, the other is based on polarizing beam splitter, were compared then. Theoretical analysis results show that the proposed scheme can transmit quanta states with no EPR pairs shared by source and objective nodes, and the time delay in transmission has nothing to do with the number of wireless hopping and the distance of link.