Abstract: Evaluation of radiofrequency coils encompasses electrical characteristics, radiofrequency fields, image quality, and safety. Differences in test conditions and normalization limit the comparability of results across studies. This work proposes a layered implementation framework for radiofrequency coil performance evaluation, intended to organize test items, harmonize reporting conditions, and support acceptance decisions. Based on 28 representative publications from 2016 to 2026, 16 standards and guidelines, and 8 methodological references, the definitions, measurement conditions, and applicability of evaluation metrics are clarified. The framework organizes evaluation into five dimensions: bench electrical performance, channel and receive-chain performance, in-scanner radiofrequency fields, image and task performance, and safety and risk. Testing priorities and acceptance criteria are summarized for four settings: design verification, acceptance testing, constancy testing and quality control, and first-in-human evaluation. The framework emphasizes that improvement in a single metric does not establish an overall performance benefit. Evaluation should therefore account for the intended use, test conditions, and safety requirements; assess physical performance and task outcomes together; and report repeatability, uncertainty, and acceptance criteria. The framework provides a reference for test design and interpretation.