Dietary behavior is a critical cause for the absorption and utilization of the active ingredients of tea. As such， perturbations in diet are significant consequences of tea bioavailability. This review summarizes the effects of dietary on the absorption and utilization of tea components： 1） Meal time， fasting behavior， and dietary restrictions alter physiological conditions and biological clocks， which contribute to the differences in the body； 2） Dietary structure， including protein， carbohydrate， dietary flavonoids， vitamins， and so on， influences directly the transporters， metabolic enzymes， and digestive organs that involved in the metabolism of tea components； and 3） Dietary pattern affects the intestinal microecology by changing the structure and quantity of gut microflora， and then affects indirectly the absorption， utilization， and distribution of tea components. Finally， the research prospect for future research on the intestinal flora and its metabolites in improving the bioavailability of tea components.