The advent of CRISPR-Cas9 gene editing technology has revolutionized molecular biology, enabling precise modifications at the genetic level. This conceptual framework examines the potential application of CRISPR-based approaches to enzyme engineering for selective bond activation, particularly targeting C-H, C-C, and C-O bonds. We discuss the fundamental mechanisms of CRISPR-mediated protein modification, analyze the current state of enzyme engineering through directed evolution, and evaluate prospects for integrating these technologies. While CRISPR-Cas9 has been primarily applied to gene knockout and correction, its potential for precision enzyme engineering represents an emerging frontier. This review synthesizes advances in biocatalysis, computational protein design, and CRISPR technology to envision future applications in pharmaceutical synthesis, biofuel production, and sustainable chemistry.