With the rapid development of China's Internet industry，strengthening public digital culture construction and providing public cultural digital services is not only the need of the times，but also an important path to meet people's cultural needs and accelerate the construction of modern public cultural service system.In recent years，public cultural institutions such as cultural centers and public libraries at various levels across the country have accelerated the construction of digital culture，and public digital cultural services have been carried out in depth，setting off a wave of digital cultural construction.This article takes the digital cultural service platform which has generated a large amount of valuable big data as the starting point，and explores the basic data，business data，user behavior data，and management data，etc.，focusing on how to collect，analyze and apply the big data scientifically，and hoping to make feasible suggestions for the digitalization process of public cultural service construction.