Image uploading method and system, image uploading client terminal and network server

The invention belongs to the technical field of wireless network communications, and provides an image uploading method and system, an image uploading client terminal and a network server. The image uploading method comprises the following steps that the client terminal determines an image to be uploaded and generates a unique image identification corresponding to the image to be uploaded, an image detection request is sent to the network server, the network server detects whether the image with the same image identification exists in the network server and returns a detection result to the client terminal, when the detection result is not, the client terminal uploads the image to be uploaded in a one-by-one uploading mode to the network server to be stored, and after the image to be uploaded is uploaded successfully, the network server records the image identification and returns a successful uploading response to the client. The image uploading method and system, the image uploading client terminal and the