A domain component interface identifier matching method based on semantic was provided.The original interfaces in component library were parsed based on naming rule base

DRM（dimension record model）

root base

operation classification and environment classification.Then the parsed component library was generated.The proposed method searched in parsed component library based on environment

object and operation information provided by user.First

the method filtered interface by environment and object

then the name similarity and construction similarity are calculated by defined threshold

matching degree is got.The tool based on the way was applied in practical work and have achieved good results.