The invention belongs to the field of exploration and development of oil and gas, and mainly relates to a geological factor labeling method of documents, in particular to a geological factor labeling method of a document. The geological factor labeling method of the document is characterized by comprising the first step of opening an electronic file and an entity interacting instrument; the second step of choosing a key element in the electronic file; the third step of inputting the key element into the entity interacting instrument; the fourth step of making the entity interacting instrument obtain an address of the input key element in an entity interacting instrument database according to the input key element; the fifth step of conducting displaying of relevant content of the address corresponding to the key element. The geological factor labeling method of the documents can be widely applied to numerous fields of oil-gas exploration, coal field hole drilling and geological survey and the like.