A data processing system includes a first data terminal, a second data terminal, and a data computing node, where the data computing node is separately in communication connection with the first data terminal and the second data terminal. The data computing node is provided with at least one data computing logic. A method for processing data at the data processing system includes: receiving, by the data computing node, a data computing call application sent by the second data terminal, where the data computing call application includes a query index for target service event data, obtaining the target service event data from the first data terminal based on the query index, running a data computing logic corresponding to the data computing call application, and performing data computing based on the target service event data to obtain a computing result, and sending the computing result to the second data terminal.