Disclosed are the use of a metal hydride/palladium compound catalytic reduction system in the reduction of an alkenyl active methylene compound and a reduction method. The reaction comprises the following steps of subjecting the alkenyl active methylene compound as a substrate to a reduction reaction with a metal hydride as a reducing agent and a palladium compound as a catalyst so as to obtain a reduction product, thereby completing the reduction of the alkenyl active methylene compound. The reduction system is a simple method for reducing an alkenyl active methylene compound, and the hydride and palladium compound catalyst used are both reagents that are easily available in laboratories. Compared with commonly used hydrogen hydrogenation methods and reducing agent-based reduction methods, this method is easier to operate, and has a higher safety, mild conditions and a high reaction yield; furthermore, the reaction can be carried out in one pot over two steps, and same has high atomic economy and step economy.
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