Abstract: 【Purpose/significance】At present, the loss of national cultural resources is serious, and the resource sharing utilization rate
and resource integrity of the existing national cultural resource sharing methods are low.【Method/process】Therefore, a national cul?
tural resource sharing model based on MB + tree test method is designed. The resource collection subsystem crawls the national cultur? al resources and stores them in the resource database through crawler technology; The MB + tree test method is used to complete the test of shared resources, extract the association feature of national culture shared big data, obtain the cluster center of multi module col? laborative data mining, and obtain the resource sharing model by using the method of regional network design.【Result/conclusion】The test results show that the proportion of successful crawling requests of the system is 99.76%, which can complete the real-time transmission demand of resources when the resource integrity is higher than 95%. At the same time, it can realize the sharing of nation? al cultural resources when the utilization is maximized.【Innovation/limitation】The method in this paper can effectively improve the resource utilization and have high resource integrity. It has a good effect in practical application.