A man knifed a Queens woman to death in front of her family during a home-invasion robbery early Friday, cops said.

The knife-wielding attacker, dressed in black, somehow got inside the woman’s home at 105th Avenue and 223rd Street in Queens Village around 3:20 a.m., according to police.

Investigators are still trying to determine if he forcibly made his way inside or if the family initially answered a knock at the door, cops said.

He stabbed her once in the chest and arm, authorities said.

Rose Ragsdale, 66, was rushed to Long Island Jewish Hospital, but it was too late.

She was pronounced dead on arrival, cops said.

There were no other reported injuries.

Police are actively searching for the suspect.