In shipbuilding, the assessment of technological maturity is weak and lacks informational means. By determining the evaluation indicators and setting the weights, the system automatically calculates the maturity score and level, which can be evaluated in terms of overall design, construction technology, shipyard construction resource capacity, and ship development and finalization. In this way, losses can be avoided, time cost and labor cost caused by rework can be reduced, and the scientificity, accuracy, reliability, flexibility and evaluation efficiency of shipbuilding technology maturity evaluation can be improved.