But the US has denied the allegations.
The claims came after witnesses gave evidence linking the former Iraqi president and his henchmen to alleged killings and torture.
"I have been hit by the Americans and tortured," he told the court.”
"Yes, I've been beaten on every place of my body and the signs are all over my body," he added.
"We were beaten by the Americans and we were tortured, everyone of us," he said, pointing to his seven co-accused in the dock.
Saddam has been detained by US forces since his capture two years ago.
The chief prosecutor immediately suggested that, if this were the case, he would ask US forces to hand over the defendants to the Iraqi authorities.
"Our enemy is not the American people. Our enemy is the American government which is destroying Iraq," Saddam also said.
Saddam also described insurgents as "brave men", adding that they were doing "good work".
A senior US diplomat at the embassy in Baghdad, Christopher Reid, told CNN television the claims were "bogus".
"The claims are absolutely bogus," he said.
"It's a strategic move. A move that has nothing to do with reality or the truth," he added.
In Washington the White House also categorically rejected Saddam Hussein's charge, calling the accusation "preposterous."
"Saddam Hussein is being treated the exact opposite of the way his regime treated those he imprisoned and tortured simply for expressing their opinions," said spokesman Scott McClellan.
"And so I reject that."
The trial resumed after a two-week break allowing for a general election to elect the first full-term government since Saddam's repressive Baathist regime was toppled from power by the 2003 US-led invasion.
Plastic tubing
Earlier in the day, two witnesses described torture at the hands of Saddam's officers.
One witness told the court that Saddam's guards heated up plastic tubing and allowed the hot plastic to drip onto the bodies of victims, and burnt the feet of detainees.
"They would be in such pain as the plastic solidified on their bodies," the witness recalled.
"A man would leave on his feet and come back thrown in a blanket." Another witness said he was given electric shocks.
While he screamed in agony in the torture chamber at the headquarters of the intelligence service in Baghdad, Saddam's half-brother and former intelligence chief Barzan Ibrahim al-Tikriti ate grapes and watched, the witness said.
Saddam hit back, saying he had been beaten and tortured while in US custody following his arrest in late 2003.
Then, in one of his more contrite statements so far, he said those guilty of the alleged torture should be punished.
"The wrongs that were done to those people were wrong and according to law, those who did it should get what they deserve," he said.
Saddam and seven co-defendants including Barzan are charged with crimes against humanity relating to the killing of 148 people from the mainly Shi'ite village of Dujail, north of Baghdad, in the 1980s.
Prosecutors say Saddam ordered the killings in reprisal for a failed bid to assassinate him in the village in 1982.
Barzan outcry
The first witness, Ali Hassan al-Haidari, spoke calmly and coherently, saying Barzan had kicked him once as he lay in a hallway suffering from a fever.
"He said to the guards 'Do not treat him, this family does not deserve to live'," Mr Haidari said. Barzan lost his temper several times.
At one point, Barzan leapt to the defence of another defendant, former Iraqi vice-president Taha Yassin Ramadan, accused by the witness of bulldozing farms in Dujail.
"His (Ramadan's) shoe is more honourable than you and all your tribe, you dog!" Barzan shouted at Mr Haidari.
Court guards twice opened the gate to the caged defendants' dock as if to remove Barzan but the judge ordered them to stop.
Mr Haidari's testimony was among the most graphic so far in the stop-start and often chaotic trial, which started on October 19.
He said that even if Saddam was not directly involved in the torture, he must have ordered it.
The second witness, who testified from behind a curtain, said his son had been killed and he had been tortured.