According to "Geographies" in Samguk Sagi, Daegaya existed for about 520 years from First King Ijinashi (이진아시왕) to the last King Doseolji (도설지왕), but the record is uncertain. Daegaya played a major role in the Gaya confederacy in 5th century, because of their advanced steel-making craft.

King Haji (하지, 荷知) of Daegaya sent embassy to Namje (南齊) (Anyone knows Chinese add pinyin please) in 479, and allied with Baekje and Silla to attack Goguryeo in 481. Daegaya developed very quickly in 5th century but their progress was blocked by Baekje and Silla. Daegaya allied with Baekje and waged war upon Silla in 554 but lost. Those efforts were to achieve independency of Gaya, but these confrontation policy isolated the entire Gaya; and Daegaya lost its leadership of Gaya to Ara Gaya.