The invention provides a data processing scheme based on cloud service. The method comprises the following steps that: users register to be cloud server clients at a cloud server; the cloud server allocates processing space for each user; each user selects an extraction component with a visual template; each user uploads local data to the cloud server; the cloud processes the data, specifically, extracts, converts, analyzes and presents the data; and the cloud server stores the data processing result. A device comprises the following modules of: a register module for users to register at the cloud server and for allocating space for the users; a selection module for selecting the extraction component with the visual template; an uploading module for users to upload data to the cloud server; a data storage module for processing data, specifically, extracting, converting, analyzing and presenting the data; a storage module for storing the data at the cloud; and an exporting module for exporting the data to local areas of the users.