The invention discloses a 2-bit dicarbonyl substituted pyrrole compound and a preparation method thereof, and belongs to the technical field of synthesis of pyrrole derivatives. The technical scheme is that the general structural formula of the 2-bit dicarbonyl substituted pyrrole compound is as shown in the specification. According to the preparation method, 2-bit double-carbonylation of pyrrole is achieved by the aid of one-step cascade reaction, a series of multifunctional 2-bit dicarbonyl substituted pyrrole compounds are synthesized, and the preparation method lays a foundation for further derivatization research of the compound and synthesized pharmaceutical molecules containing pyrrole structures.