Digital culture，as one of the important directions of Digital China strategy，has become a good complement to traditional culture in the IT era. However，in recent years，digital culture products have faced serious piracy problems，and traditional technology cannot effectively protect the copyright of digital culture. How to effectively solve the copyright confirmation has become a matter of urgent need for digital culture products. With the continuous maturity of blockchain technology，blockchain can effectively dock with judicial system to guarantee the copyright of digital cultural products based on the characteristics of tamper-proof，traceability，transparency and polycentricity. Therefore，blockchain is also gradually used as the infrastructure of digital culture bearing to help protect the copyright of digital culture products. At the same time，with the development of new era technology such as AIGC，the dissemination of digital culture also needs to be replaced by new ways，relying on paper media，Internet media and other channels can no longer meet the needs of the new generation of digital culture promotion，digital culture products constructed through blockchain can form digital assets，which not only expands the dissemination of digital culture，but also enhances the value of digital culture，which is welcomed by the post-00s youth. Through digital culture implement different age groups at the same time to achieve global promotion and accelerate the influence of Chinese traditional culture spread.