Perhaps the single most iconic rivalry in comics, Batman and Joker have been locked in an ongoing battle between good and evil for decades. Beginning in Batman #1, the chaotic Clown Prince of Crime is driven by a desire to break Batman's resolve and plunge Gotham into anarchy. Their shared history of violence is entertaining, yet it begs a simple question: Why do the two keep teaming up?
Source：https://www.cbr.com/why-does-batman-keep-teaming-up-with-joker/
