Ferrocene is an organic transition metal compound with aromatic properties. Its molecules show polarity, high thermal stability, chemical stability and radiation resistance. It is widely used in industry, agriculture, medicine, aerospace, energy conservation, environmental protection and other industries. The main applications are: (1) energy saving smoke suppressant and antiknock agent used as fuel. For example, it is used to make gasoline antiknock agent, burning rate catalyst of rocket propellant, solid fuel for aerospace, etc（ 2) Used as catalyst. For example, as a curing agent for silicone resin and rubber, it can prevent the degradation of polyethylene to light. When it is used for agricultural mulching film, it can be naturally degraded and broken within a certain time without affecting farming and fertilization（ 3) Used as gasoline antiknock agent. It can replace the toxic tetraethyl lead in gasoline as an antiknock agent to make high-grade lead-free gasoline, so as to eliminate the pollution of fuel emissions to the environment and the toxicity to human body（ 4) Used as radiation absorber, heat stabilizer, light stabilizer and smoke inhibitor（ 5) It is used to prepare a series of widely used derivatives.