The house with the bodies, dubbed "F40," was just 210 square feet.
It is expected those were possibly killed in an epidemic of some sort.
Scientists found the bodies of teenagers, young adults and middle aged men and women were packed into the tiny building, which was smaller than a modern-day squash court.
"They had been wiped out by a "prehistoric disaster," such as an epidemic, and had been stacked inside the house instead of being buried," said archaeologists who studied the remains.
After inspecting the recovered bodies, it seems they were dying faster than the survivors could deal with their corpses
The site, whose modern-day name is "Hamin Mangha," dates back to a time before writing was used in the area, when people lived in relatively small settlements, growing crops and hunting for food.
The village contains the remains of pottery, grinding instruments, arrows and spearheads, providing information on their way of life.
An anthropological team at Jilin University in China is studying the prehistoric remains, trying to determine what happened to these people.