There are many ways to query big data credit, such as logging in to various big data credit platforms and querying your own Internet credit. If you want to query the big data of credit cards through your mobile phone, you can query it through card detailed inquiry, which can help users clearly understand their current credit card usage and improve their personal qualifications more pertinently, thus improving their comprehensive credit score. At the same time, the software can also obtain the credit card risk score, withdrawal probability, consumption index, consumption record, consumption amount, transaction overview, credit card habits and other information of users with one click.