Can’t nobody hold him down.

Sean “Diddy” Combs remains “remarkably” upbeat in his notoriously tough Brooklyn lockup because he’s so focused on proving he’s not a sex trafficker, according to his attorney.

“His state of mind is actually remarkably positive,” Combs’ attorney, Marc Agnifilo, told TMZ when reminded that the disgraced hip-hop mogul could spend more than a year behind bars before even reaching trial.

“I spend several hours with him every day. His resolve is strong, he’s engaged, he’s focused on his defense,” Agnifilo said in a new clip for TMZ’s “The Downfall of Diddy: The Indictment.”

“He is so focused on trying to right his wrong that it’s actually giving him a form of strength and a form of confidence that I think is going to get him through a difficult time.”

Combs, who is facing federal sex trafficking and racketeering raps, was put on suicide watch days after he was arrested as a “preventative measure” in MDC Brooklyn, where he is housed in a special unit away from the prison’s general population.

The notorious jail has long been plagued by tales of “barbaric” and “reprehensible” conditions for inmates — who have included sex abusers R. Kelly and Ghislaine Maxwell.

Combs is also sharing space with crypto crook Sam Bankman-Fried on the same unit at Brooklyn’s federal lockup.

However, his legal team refutes Combs is in a negative state of mind.

“We see him every day and he has come to terms with the fact that this is where he is for now. We are trying to get this matter to trial as soon as possible,” Agnifilo said.

“There’s an adage that we have in my office: ‘Don’t tell me what I did wrong, tell me what I do next.’ And that’s where he is,” the attorney said.

Combs is accused of forcing women into  “Freak Off” sex sessions with male prostitutes that were often recorded while the music producer masturbated and recorded them, the bombshell federal indictment alleges.

Combs would allegedly lure the women into his orbit — often under the pretense of a romantic relationship — before doling out drugs to “keep the victims obedient and compliant,” the indictment charges.

The Freak Offs could last for days and Combs and the victims would often receive IV fluids in the aftermath “to recover from the physical exertion and drug use,” the feds allege.

His employees allegedly helped to arrange travel, booking hotel rooms where the “Freak Offs” would take place, and stocking the rooms with supplies — including drugs, baby oil, lubricants, and extra linens.

During the March raids on Combs’ homes in Miami and Los Angeles, federal agents discovered 1,000 bottles of lubricant and three AR-15s.

The hip-hop superstar was held without bail last Thursday after he pleaded not guilty to the three-count indictment.