Biosecurity in agricultural pest management requires the use of innovative and creative approaches that, while reducing environmental damage, also prevent the emergence and spread of resistance in pests. The use of predatory mites as natural enemies of pests is one of the effective approaches in this field. This article reviews the importance of pollen from various plants in the mass rearing of predatory mites of the Phytoseiidae family and improving their effectiveness in biological control of important pests such as two-spotted spider mites, thrips, and whiteflies. Mass rearing of these predatory mites is a suitable way to reduce the use of chemical pesticides and produce healthy crops. To increase the population of these predatory mites, it is very important to identify their alternative food diets. Feeding predatory mites on alternative food sources such as different plant pollens plays a key role in maintaining and sustaining their populations. Also, pollen as an alternative food source can affect the efficiency of predators and some of them are effective in maintaining the population of predatory mites in the absence of pests. However, the nutritional value of pollen varies depending on the plant species. Results from various researchers show that fed on pollen can significantly increase the survival, growth, and reproduction rates of predatory mites of the Phytoseiidae family and improve the effectiveness of biological control.