In the context of the digital economy and the digital transformation of finance, it is imperative to create a teaching resource system that is in line with actual operations in view of the pain points of the separation of accounting teaching content from the actual business of enterprises and the lack of systematic practical cases in colleges and universities. The research adopts the method of in-depth collaboration between schools and enterprises to jointly develop an online project case library covering high-frequency scenarios such as procurement, sales, and fund management, and reconstruct a multi-level curriculum system. Practice has proven that this model can effectively strengthen business understanding and technical application capabilities, and achieve seamless connection between classroom teaching and corporate positions. The research provides a replicable reference path for the innovation of digital and intelligent accounting talent training mechanisms and the reform of practical teaching in vocational colleges.