秦以前,中国南部及东南部是越族人民的聚居地区。生活在福建的古越族,习惯上被称为闽越族。由于越人有悠久的航海传统,丰富的航海经验,众多的航海大船,因此,在民族融合与斗争的动荡之际,部分越人乘船渡过台湾海峡,移民台湾,从而闽台交通往来逐渐密切。公元前334年,楚威王攻打越,“越以此散,诸族子争立,或为王,或为君,滨于江南海上”所以连横在《台湾通史》中指出:“或日楚 Before Qin, southern and southeastern China were areas inhabited by Vietnamese people. Ancient Yue people living in Fujian, habitually known as Min-Yue ethnic. As the Vietnamese people have a long tradition of navigation, abundant sailing experience and numerous sailing ships, some of the more people flew across the Taiwan Strait and immigrated to Taiwan on the occasion of the turmoil in ethnic integration and struggle so that the traffic between Fujian and Taiwan gradually increased close. In 334 BC, Chu Wei attacked Vietnam, and ”the more he dispersed, the more heredity of the tribes, or the king, or the king, inhabited by Jiangnan Sea.“ So Lian Heng pointed out in the ”General History of Taiwan“: ”Or day Chu