There has not been systematic study or research about the historical aspects of Kollur Sri Mookambika. So no details are available in this regard. But there are a lot of records to prove the ancientness and historical importance of this temple. History of the temple begins with the arrival of sage Shankaracharya at this place in 8th century A.D.
Historically it is believed that this place was inhabited by Shakthas called Kaulas and that was how this place came to be called as Kollur Mukambika . Honneyakambali Kings of Hosangadi have been ruling Kollur and they were ardent devotees of Kollur Sri Mookambika. Venkanna Savantha of this dynasty built the stone structure of the temple in 11th century A.D. Chieftains of Barkur were also devotees of Kollur Mookambika Devi and they created a lot of endowments for the temple.
During the reign of King Virupaksha of Vijayanagar, Pandarideva was his savantha at Barkur and at his time Mookambika temple became very famous. Kollur Mukambika was the patron goddess of Keladi Kings. A poet named Linganna Kavi had written a book titled 'Keladi Nrupa Vijaya' in 1750 A.D and this book contains a lot of references to Kollur Mukambika Temple. It is believed that the renowned palm sized emerald was gifted by queen Chennammaji of Keladi dynasty.
Keladi Venkatappa Nayak ordained special poojas and festivals at the temple and directed that his subjects should regularly worship Mookambika. Keladi Veerabhadra Nayaka had named his wife as Kollurammaji. These kings donated vast tracts of land to the temple and made arrangements for various festivals at the temple. Saint Vadiraja of Udupi had visited Kollur Sri Mookambika and written slokas in her praise.
The Maharaja of Mysore and Travancore were devotees of Mookambika and they had presented valuable gold ornaments to her. Jayachamarajendra Vodeyar of Mysore and Chithira Thirunal Maharaja of Travancore had visited the temple. Tippu Sultan of Mysore had visited this temple and a special 'mangala arthi ( Deeparadhana)' was conducted at his behest. That pooja is being continued even today and it is called 'Salam Mangalarthi' which follows the main pooja during night session. There are enough evidences in the forests surrounding Kollur Mukambika to indicate that once upon a time this was a well built up place.