Algorithm technology,as a new productive force in the era of digital economy, serves as a boost to industrial transformation and upgrading.Within the short video industry, the adoption of algorithm recommendation technology has facilitated a technological shift from "human-based recommendation" to "algorithm-driven recommendation". This transition has intensified the controversy between short video platforms and copyright holders regarding short video infringement. Compared to human-based recommendation the application of algorithm recommendation technology has actually increased the duty of care of short video platforms and triggered changes in the liability of short video platforms. The duty of care of short video platforms can be regulated through different paths of ex-ante, in-process and ex-post.It is necessary to establish an ex-ante early warning mechanism, adjust in-process measures and improve the ex-post punishment mechanism so as to achieve a win-win situation for short video platforms,copyright holders and users.