The 30-year-old also has an outstanding record on Stanley Street.
Bautista Agut will rise one place in the world rankings to 23 on the back of the victory in Qatar, and said his aim was to go higher.
"Obviously, I'm not pleased that I lost the match today, but I lost to a better player in the end".
" I knew that he's playing probably the tennis of his life in the past 10 months, and he's definitely one of the greatest hitters in the game".
And the world number one would seal his success with a game won to love, Basilashvili whipping a forehand wide and long as Djokovic's endurance in a lengthy rally once again proved the difference. "But this is what I was looking forward to getting from this tournament, as many matches as possible, to get ready for the Australian Open".
Speaking on court after the match, Djokovic praised fifth-seeded Basilashvili, who he had anticipated would provide him with a stern test.
The Serb won his last Australian Open in 2016, beating Britain's Andy Murray in straight sets.
"I think I did a very complete match". I care playing with him more than with anybody else, so that's why it took a lot out of me emotionally. He hasn't dropped a set this week.
After losing the first set on Friday evening, the seventh-seeded Spaniard prevailed in the tie-break to take the second set and began the third by breaking Djokovic's serve, reports Efe news.
With the momentum swinging his way, Bautista Agut secured an early break in the final set before closing out the match.