To address the need for comprehensive assessment involving multi-dimensional and multi-index evaluations in the assessment of aircraft technological advancement

this paper proposes an evaluation method for aircraft technological advancement based on combined weighting and fuzzy comprehensive evaluation. This method establishes hierarchical evaluation criteria by incorporating expert opinions and using a rating set

and constructs an evaluation system from four dimensions: Technical competitiveness

technological maturity

cost-effectiveness ratio

and technical standards. Furthermore

it combines the fuzzy analytic hierarchy process and the entropy weight method to assign weights to each index

employs membership functions to fuzzify the indicators

and finally achieves comprehensive multi-dimensional scoring through matrix operations. Case study results on fixed-wing and rotary-wing aircraft demonstrate that this method can provide a reference for the quantitative assessment of technological advancement and the ranking of research and development priorities in aircraft design

with high scientific validity and engineering practicability.