The invention discloses a method for determining manufacturing technological conditions of standard varicosity membranes by testing the oil contents of the varicosity membranes. The method comprises the steps that 1, varicosity membranes of different batches are selected as samples to be extracted and dried for testing the oil contents of the varicosity membranes; 2, contrastive analysis is performed on the tested oil content data by combining different technological conditions such as deoiling oven temperature and the varicosity membrane thickness adopted by the varicosity membranes of different batches; 3, the varicosity membrane of the certain batch with the low oil content and the small difference between the technological conditions and original technological conditions is selected, infrared spectrum detection is performed on a carbon tetrachloride extract solution of the varicosity product manufactured through the membrane of the batch, and if no hydrocarbon substance is detected, the manufacturing technological conditions of the membrane of the batch are determined as the manufacturing technological conditions of the standard varicosity membrane. The method can well determine the setting temperature at which the amount of substance containing hydrocarbon of the varicosity product which cannot be detected by an infrared spectrum is manufactured by a deoiling oven so as to ensure that the final product is qualified in quality.