Lubricating grease with self-warning function as well as preparation method and application of lubricating grease

The invention relates to the field of lubricating grease, and discloses lubricating grease with a self-early-warning function as well as a preparation method and application thereof. Based on the total weight of the lubricating grease, the lubricating grease comprises the following components in percentage by weight: 70-95% of base oil; 4-30 wt% of a thickening agent; 1-10 wt% of an additive; the additive comprises an oxidation indicator and an optional antioxidant, and the oxidation potential of the oxidation indicator is higher than that of the antioxidant. The invention also discloses a method for preparing the lubricating grease and application of tetraaryl substituted pyrrole. By introducing tetraaryl substituted pyrrole, it can be judged that in-use lubricating grease starts to be oxidized and needs to be replaced according to the change of fluorescence, and rapid and convenient determination of the service life of the lubricating grease is achieved. 本发明涉及润滑脂领域，公开了可自我预警的润滑脂及其制备方法和应用。以润滑脂的总重量为基准，该润滑脂包括基础