This application discloses an image deployment method, where the image deployment method is applied to a container system. Information about an image that has been deployed on each host is collected. After an image tag of a to-be-deployed image is obtained, a degree of overlapping between the image that has been deployed on each host and the to-be-deployed image is determined. A host with a higher overlapping degree needs to download a smaller amount of data when deploying the to-be-deployed image and deploys the to-be-deployed image at a higher speed. Finally, a management node selects, according to overlapping degrees of the hosts, a deployment host for deploying the to-be-deployed image.