For building up the Tephritid Tree of Life, we have so far accumulated fresh samples of 570 species of 220 tephritid genera, covering 11% and 44% of World species and genera, respectively. Based on the molecular systematics approach, the followings are examples of our findings: (1) two monophyletic groups within the superfamily Tephritoidea were clearly recognized (compatible with Willi Hennig’s Pallopteroidea and Otitoidea that are not currently used); (2) expanded concept of the family Tephritidae including parasitic taxa (Tachiniscinae, Ctenostylidae and Pyrgotidae); (3) reconfirmation of monophyletic Trypetini, Carpomyini, Tephritinae, and Dacinae; and (4) the first Tephritoidea might have evolved around the middle of Paleocene Epoch (~59 mya) and the family Tephritidae around the late Eocene (~36 mya).