提出了一个利用五粒子团簇态实现的可控量子安全直接通信方案.在这一方案中，首先信息发送者Alice、信息接收者Bob和控制者Charlie共享由Alice制备的一有序序列团簇态作为量子信道；在确定量子信道的安全性以后，Alice制备编码量子态（Bell态）序列，然后通过对自己手中的粒子进行Bell基测量，接着Charlie对自己手中的粒子进行单粒子的测量，就能把信息传送给接收者Bob；最后，Bob测量自己手中的粒子，并通过分析三人的测量结果，从而获得Alice要传送的信息.在我们提出的方案中，携带信息的粒子不需要在公共信道上传输.该文中，我们给出了方案的安全性分析，证明了我们的方案是决定性的和安全的.在未来，我们的方案在以目前的实验技术为基础条件下很可能得到实现.

A novel controlled quantum secure direct communication scheme by using five-particle cluster states is proposed. In this scheme, the quantum channel between the sender Alice, the controller Charlie and the receiver Bob consists of an ordered sequence of five-particle cluster states which are prepared by Alice. After determine the security of quantum channel, Alice prepares the encoded Bell-state sequences, and Alice and Bob perform Bell-state measurements on the particles at hand, respectively, and then Charlie may make a single-particle measurement. Then Alice and Charlie tell their result to Bob, Bob can get the secret information through the analysis of their results. In our scheme, the information-carrying particles do not need to be transmitted over the public channel. Moreover, we analyze the security of the controlled quantum secure direct communication protocol, and demonstrate that our scheme is determinate and secure. In the future, our scheme might be realizable based on present experimental technology.