With the efforts made in the agricultural sector, the productivity and efficiency of crops are still less than their maximum potential. This is because of the low efficiency of water and nutrients used by plants and the existence of severe competition with pests and weeds. Nanotechnology has the ability to eliminate these obstacles and problems, and in the coming years, it will increase the yield and efficiency of agricultural plants and create human food security. Necessary measures to repair the destructive effects due to the presence of living and non-living stressors on plants appear after creating stress in plants. Unfortunately, after creating problems for the plants, it may spread seriously and cause the destruction of the entire farm by the stress factor. But because nanotechnology is similar in size to the activity of viruses and pathogens. Therefore, this technology has the ability to quickly detect and eradicate plant pathogens. Some nanotechnology activities such as nano herbicides have been used by farmers.