量子安全直接通信作为一种新的量子通信方式，可以在无需提前分配密钥的前提下，在通信方之间安全地直接传递信息。量子安全直接通信提出后，在理论和实验上得到了迅速发展。在量子安全直接通信实用化过程中，实际系统中使用的测量设备缺陷导致的安全漏洞问题亟待解决，一种解决该问题的方案为测量设备无关技术。本项目将针对测量设备无关的量子安全直接通信展开理论和实验上的研究，提出实用化的测量设备无关量子安全直接通信方案，并实现相应的验证实验系统。

Quantum secure direct communication (QSDC) is a unique kind of quantum communication mode, which can transmit secure information directly between two parties without establishing secret keys in advance. Since it was first proposed, QSDC has been developed rapidly both on theory and experiment. Defects of measurement devices used in practical QSDC systems can lead to loopholes that threaten the communication security, and one solution is the measurement device independent (MDI) technique. In this project, we will focus on the theoretical and experimental study of MDI-QSDC. Practical MDI-QSDC scheme will be proposed and principle experiment will be achieved.