The invention discloses a security reinforcement method for a credible container based on Docker used for performing security reinforcement on a Docker container system, and realizes the credible container based on the Docker, as well is applied to a server cluster based on the Docker. The credible container based on the Docker comprises a container program Docker, a container credible measurement module, a progress monitoring module and a network communication monitoring module, wherein the container credible measurement module comprises a credible booting sub-module and a file measurement sub-module. The reinforcement method focuses on the credibility of the Docker container; a credible computing and integrity measurement technology is matched with a real-time monitoring module to reinforce the container system based on the Docker, so that the container and a mirror image are prevented from tampering; and meanwhile, a network communication behavior of the container is limited, and an inner progress of the container is monitored, so as to realize the security reinforced credible container.