Rylenes are peri‐fused naphthalene oligomers and possess a unique electronic structure, which makes them attractive materials as organic dyes andsemiconductors. Recent studies have demonstrated an unusual open‐shell diradical character for long rylene molecules and potential half- metallic properties of polyrylene ribbon.Since 1910, chemists have been trying to get the longest possible oligonitrile and polyonitrile, and the synthesis of long onitrile and polyonitrile has been a very challenging task. In order to solve the problem of easy aggregation and stability of key molecules, we designed molecules with good properties and strong stability. This article mainly described the process and data analysis of perylene endocyloperylene through formylation, oxidative esterification and nucleophilic addition of a monomer, then alkylation through Friedel-Crafts reaction to complete naphthalene endocyloperylene, and then oxidative cyclization with hetero atoms to enhance its performance. The designed molecule has optical, electrical and magnetic properties. At the same time, due to the large steric substituents on the sp3 carbon of CP ring can effectively inhibit the aggregation between molecules, so it also has good stability.