No-feedback one-way data transmission method based on single fiber structure

The invention discloses a no-feedback one-way data transmission method based on a single fiber structure; equipment comprises two one-way fiber data transmission cards which belong to a transmitting end and a receiving end respectively, and the two one-way fiber data transmission cards are connected by a single fiber through a fiber receiver, data communication between the transmitting end and the receiving end adopts a proprietary protocol to carry out data encapsulation, and the reliability of the one-way data transmission is ensued by correcting and deleting codes; as the connection between the transmitting end and the receiving end does not adopt an Ethernet protocol, a data packet is not treated by a TCP/IP protocol stack, so as to eliminate the possibility that a malicious user or ahacker uses the data packet sniffing tool to detect the proprietary protocol format and greatly enhance the transmission safety.