The 2017–18 Bulgarian Basketball Cup was the 64th edition of the annual cup tournament in Bulgaria.It is managed by the Bulgarian Basketball Federation.The competition started on November 22, 2017, and ended with the Final on March 3, 2018.

In this edition, the Bulgarian Basketball Federation presented new format.

In the first round, the six teams who participated in European or Regional competitions from the NBL have an automatic bye to the quarterfinals, while the other three teams and five teams from A Group League (second tier) would play a single-game eliminatory for a place in the quarterfinals.

Teams with lower league position will have home advantage.

[1] Bultex 99 Balkan Beroe Cherno More Levski Lukoil PBC Academic Rilski Sportist Spartak Pleven Yambol from East zone: Chavdar from West zone: Athletic Academic Sofia Vidabasket