N6-Methyladenosine (m6A) is the most common mRNA modification in eukaryotes and is a dynamically reversible posttranscriptional modification. The enzymes involved in m6A modification mainly include methyltransferases (writers), demethylases (erasers), and methylated readers (Readers). m6A modification is mainly catalyzed by m6A methyltransferase and removed by m6A demethylase. The modified RNA can be specifically recognized and bound by m6A recognition protein. This protein complex then mediates RNA splicing, maturation, nucleation, degradation, and translation. m6A also alters gene expression and regulates cellular processes such as self-renewal, differentiation, invasion, and apoptosis. An increasing body of evidence indicates that the m6A methylation modification process is closely related to the occurrence of various skin diseases. In this review, we discuss the role of m6A methylation in skin development and skin diseases including psoriasis, melanoma, and cutaneous squamous cell carcinoma.