Muslims conquered the Iberian Peninsula in the early 8th century and named the region Andalusia. This was a geography where Muslims, Christians and Jews lived together during the centuries when Muslims dominated (711-1492). The period when Muslims were most strong- ly represented in the region and Islamization took place here was during the years when the Andalusian Umayyad State was dominant (756-1031). From the beginning of the 11th century, when this state entered the process of collapse, disintegration began in the Muslim-dominated region of Andalusia. In this process, small states were established in almost every city. In this sense, in a small area of 300-400 thousand square kilometers, dozens of statelets called “mülükü’t-tevâif” emerged, most of whi- ch consisted of a city or a castle. In this study, the Abbadi State, one of these small states (mülükü’t-tavâif), which ruled in Andalusia, centered in İşbîliye, between 1023- 1091, is discussed. This state was ruled by the judge of İşbîliye, Ebû’l-Kasım Muhammed b. Founded by Abbad in 1023, it is the largest of the mulûku’t-tawaif. The state ruled for 68 years until it was destroyed by the Almora- vids in 1091. In this study, the emergence process of the state, its political activities and relations with neighboring sta- tes are discussed. In addition, the periods of Ibn Abbad, Mu’tazid and Mu’tamid, the rulers of the state, and their political events were explained, and information was gi- ven about the administrative and socio-cultural life of the Abbadids. This study is intended to serve as an example for future studies on the history, characteristics and acti- vities of the Mülûkü’t-Tevâif states established in Anda- lusia.