On April 12th, 1947, he died heroically to save his comrade Kang Dian who fell into the Xihe River, at the age of 33. Naiman Banner People's Government of Inner Mongolia Autonomous Region named the place where the martyrs died as Mingren Township, and the local postal code was 28327.
In memory of Lv Mingren, the hero of Liaoji, Mingren Street (located in Horqin District, Tongliao City, Inner Mongolia) and other places have statues in Tongliao People's Park.