Ethylferrocene is an organometallic compound with the formula C12H14Fe.It was originally used in military or space field as an additive in rocket propellant, to promote the burning rate. But nowadays, ferrocenyl derivative has wide applications to biological and medical fields such as ferrocene-modified beta-lactam because of its physiological activity of anti-malarial, anti-tumor, bactericidal, anti-inflammatory, treatment of anemia, inhibition of enzymatic activity and so on by virtue of its unique structure and diverse properties, Good stability, low toxicity; Aromatic, easy for substitution reaction and modification; Hydrophobic, attacking a variety of enzymes in cells, DNA, RNA by going through cell membrane; Strong selectivity by its thickness of the sandwich structure, which can stop it close to the activity site of enzymes; Redox reversibility, which enable it to involve in metabolism by enzymes.