Abstract: In rapid proliferating manufacturing,in order to transfer process data to proliferating enterprises and effectively guide the production of proliferating parts,an adjusting method of determined processes based on knowledge fusion is proposed.First,process planning knowledge in the proliferating manufacturing is analyzed,and then represented with ontology and rules.On this basis,an adjusting model of proliferating manufacturing processes is constructed.Finally,a knowledge fusion strategy based on process knowledge elements is put forward.From the application in an aerospace enterprise,this method is proved to be effective in improving the process adaptability of proliferating parts and ensuring the implementation of the proliferating manufacturing mode.