Server computing device and image search system based on contents recognition using the same

A server computing device and an image search system based on contents recognition using the same are provided. The image search system includes a server computing device, and the server computing device is configured to perform an operation of receiving image search basic information including at least one among an image, a keypoint extracted from the image, and an image search condition from a user computing device; an operation of extracting a keypoint which matches with a search request keypoint obtained from the image search basic information among keypoints which are previously stored; and an operation of transmitting at least one of an image and image related information corresponding to the extracted keypoint to the user computing device.