An information transmission, sending, and acquisition method and device. A method includes: using a master and slave relay terminal in an information relay terminal pair at the head of an information relay terminal pair queue to synchronously receive information sent by a sending terminal, and using the master relay terminal to transmit information to a receiving terminal; when a fault occurs in the master or slave relay terminal at the head of the queue, stopping using the master and slave relay terminals to receive information, and deleting the information relay terminal pair from the queue; after the slave or master relay terminal in the deleted terminal pair transmits all the information to the receiving terminal and the fault of the master or slave relay terminal is removed, inserting the terminal pair to the tail of the queue; and meanwhile, when the fault occurs in the master or slave relay terminal, using the next adjacent terminal pair to continue receiving the information. The invention implements strictly-ordered and efficient information transmission.