Academic achievement is a crucial factor in evaluating the academic level of students. However, there is a problem in that academic performance solely reflects grades and cannot assess students' comprehensive abilities and qualities. To address this issue, we have developed and implemented a platform for the analysis of a user's academic profile based on the Analytic Hierarchy Process-Entropy Weight (AHP-EW) method. The platform comprises input and calculation modules for academic performance, construction and evaluation of quality evaluation indicators, diagnostic analysis reports, and knowledge graphs. It constructs students’ academic performance portraits, delivers academic diagnosis and analysis services for various educational regions and schools, and generates academic performance portrait across different levels. It improves the clarity, coherence, and comprehensibility of academic performance and plays a vital role in diagnosing, analyzing, evaluating, and providing feedback on academic performance.