The bird-swallowing ability of engine must meet the requirements of the national military standard and airworthiness. It is necessary to propose a reliable method to assess the bird-swallowing ability of the engine before bird-swallowing tests, the test risk can be reduced and the test success rate can be increased. Based on the bird-swallowing capability simulation and verification project of a turbofan, this paper proposes a method for evaluating the bird-swallowing capability of an engine based on simulation analysis, momentum analogy and contact stress analogy. According to the relevant standards and specifications, the test requirements were determined, and the bird-swallowing test was carried out and verified.The test results and assessment methods can provide reference for the development of other turbofan models.