To provide a lubricating grease excellent in high temperature durability, also inhibiting the reaction of fluorine with steel and having a long life, and a roller bearing in which the lubricating grease is filled.

This lubricating grease having a fluorine-based components by using perfluoropolyether oil as base oil and fluorine resin powder as thickening agent is provided by adding an organic compound capable of forming a membrane on a metal surface. The organic compound is a substance having -NH- bond in its molecular structure such as a diurea compound, or a metal salt of an organic acid such as sodium sebacate, etc.