The museum, located in a traditional courtyard house in Longling county in Yunnan province, has more than 100 heritage pieces and 200 photos on display.
"It tells of the Japanese aggressors' wartime crimes," Li Shaoyuan, an official in charge of cultural affairs, was quoted as saying by Xinhua.
The site of the museum was once taken over by the Japanese and used as a "comfort station" in 1942-44. Dozens of Chinese women were forced to work as sex slaves there.
The women all died in November 1944. "They were either shot dead by the Japanese or forced to commit suicide," Li said.
Published 20 September 2010, 08:30 IST