A Brooklyn man stabbed his wife, daughter and himself before setting his apartment ablaze Friday afternoon, cops said.

The 64-year-old man and his wife, 62, were arguing when he grabbed the weapon and slashed her hands about 3:40 p.m. inside their 42nd Street apartment in Sunset Park, according to police.

The couple’s daughter, 45, intervened, but in the process was stabbed by her father in both shoulders.

The suspect then knifed himself in the abdomen and set a fire in his apartment.

Firefighters responded and put out the blaze, officials said.

All three family members remained at the scene and were taken to nearby hospitals.

Charges against the suspect are pending.