Procyon AI Inference Benchmark for Android is a benchmarking tool based on NNAPI, designed to measure AI performance and quality on Android devices. It executes common machine vision tasks through a series of popular, state-of-the-art neural network models, enabling engineering teams to independently and standardize their evaluation of NNAPI implementations and the AI performance of dedicated mobile hardware. This tool not only measures the performance of dedicated AI processing hardware on Android devices but also validates the quality of NNAPI implementations, which is significant for optimizing hardware accelerator drivers and comparing the performance of floating-point and integer optimized models.