Data analysis is disclosed, including: receiving data to be analyzed, wherein the data includes one or more data identifiers (IDs) and one or more preset key-value pairs, wherein each preset key-value pair includes a preset key and a preset value; acquiring data to be analyzed based at least in part on the data IDs; segmenting the acquired data into one or more data elements; classifying the one or more data elements based at least in part on one preset key of the one or more preset key-value pairs; and analyzing the classified one or more data elements based at least in part on one preset value of the one or more preset key-value pairs.