The invention discloses a
quantum communication method and
system for terminal
delay selection, and the method comprises the steps: carrying out the measurement operation of particles of a sending terminal, and obtaining a first measurement result; performing
unitary transformation corresponding to the first measurement result on the particles of the receiving
edge node; sequentially performing Htransformation and measurement operation on the particles of the non-target receiving terminal to obtain a second measurement result; and carrying out
unitary transformation corresponding to the second measurement result on the particles of the target receiving terminal, and recovering the to-be-transmitted information. Visibly, according to the scheme, under the condition that the receiving terminal is not completely determined, the particle state can start the transmission behavior, the receiving
edge node can select the receiving terminal while the particle state is in channel transmission,and after the final receiving terminal is determined, the particles have transmitted most paths, so that the time
delay is effectively reduced, and finally information receiving is completed. The
quantum communication process of selecting the terminal is delayed under the condition that the terminal is uncertain, and the
information transmission efficiency is improved.