The invention provides an okra tea and a preparation method thereof, and belongs to the technical field of tea. The okra tea is composed of 30 to 50% of okra slice, 35 to 60% of finished tea, 5 to 15% of emilia sonchifolia, 2 to 5% of lily flower, 1 to 5% of common cattail, and 1 to 5% of ginseng; wherein the finished tea is composed of 15 to 35% of rose tea and 15 to 30% of lily, 15 to 35% of chrysanthemum tea and 15 to 30% of cassia seed tea, or 15 to 35% of tartary buckwheat tea and 15 to 30% of wolfberry. The invention also provides a preparation method of the okra tea. According to the preparation method, okra is soaked in a plumeria rubra extract solution, then okra is dried in the shade, sliced, and baked for twice, the effective components of okra are effectively preserved, then okra is mixed with emilia sonchifolia, finished tea, honeysuckle flower, common cattail, and ginseng, and the okra tea has the functions of whitening skin, removing skin spots, adjusting the grease secretion of skins, relieving fatigue, reducing blood fat, moistening intestines, and relaxing the bowels.