The immune system functions to protect the body from infectious agents. Modulation of the immune system is needed to ensure that it is able to fight various attacks by microorganisms that cause infection. One simple way to increase the body’s immunity is to consume herbal plants. Several studies have proven the activity of several herbal plants as immunostimulant agents. This research was conducted using qualitative methods. The aim of this research was to identify herbal plants for body immunity, and describe patterns of use of herbal plants to increase body immunity. The research finding revealed that herbal plants that can increase the body’s immunity are ginger, turmeric, lemongrass, cinnamon, sungkai leaves, black cumin and various other plants, most of which are still consumed in traditional ways. The largest number of respondents who used herbal concoctions to improve health was 225 respondents. There was a pattern of using herbal plants in the people of North Sumatra to increase the body’s immunity by consuming them in the form of direct decoction, herbal drink products, capsules and powder form, and syrup form.