The ancient Indian traditional medical system known as Ayurveda has long recognized the value of natural treatments, such as medicinal plants, in enhancing immune system function and general well-being. The main Ayurvedic medicinal herbs recognized for their ability to stimulate immunity include Ocimum sanctum (Tulsi), Emblica officinalis (Amla), Azadirachta indica (Neem), and Withania somnifera (Ashwagandha), show a range of immunomodulatory benefits, such as increased immune cell activity, anti-inflammatory responses, and antioxidant qualities. Gaining knowledge about and utilizing the benefits of these Ayurvedic medicinal herbs can greatly boost immunity and enhance general well-being. In Ayurveda, ashwagandha is a typical adaptogenic plant used to decrease stress and strengthen immunity. It is thought to strengthen the body's resistance to a range of illnesses and infections. In Ayurveda, tulsi is revered as a sacred herb. It can help boost immunity and fight infections because of its antibacterial and immunomodulatory qualities. Neem possesses antiviral, antibacterial, and antifungal properties. It is useful in treating and preventing a variety of infections since it strengthens the immune system and purifies the blood. This chapter elaborates on certain medicinal plants known for their immune-stimulating properties.