Clustered regularly interspaced palindromic repeats (CRISPR)/Cas9 technology is an important and promising technology in the field of plant protection, because it provides a wide variety of pest management techniques and scientific research methods. To combat insect pests, CRISPR/Cas offers genetic modifications to improve resistance mechanisms and restrict pest populations. This technology has the potential to create a revolution in agriculture and has the capacity to decrease trust in chemical pesticides by encouraging eco-friendly pest management strategies. CRISPR/Cas technology enables us to alter the insect genome, which can enhance resistance to various insect pests and diseases through genetic means. For example, we can edit the insect genome, make them sterile, and modify their behavior to mitigate their impact on crops during their susceptible period of infestation. This accurate technique of gene intervention can reduce the use of broad-spectrum chemical pesticides, which can threaten the environment. Transformation in agriculture can enhance resistance in insects and enable accurate and timely control of insect pests. Genetically modified crops are more resistant to pests and can reduce the use of chemical pesticides. In addition, CRISPR/Cas technology can support crops to withstand environmental stresses, and can help to lower harmful agricultural practices; ethical, ecological, social, and other regulatory aspects should be taken into account to ensure that it is safe and effective. Perfect regulations and guidelines are necessary for the use of genetically modified organisms in the environment. CRISPR/Cas technology is a potential approach for pest management in the field of entomology. It has the capacity to modify genetic material precisely and is a powerful tool for increasing pest resistance and controlling its population, paving the way for a sustainable and eco-friendly agricultural practice.