Franklin Grove Township (formerly China Township) is one of twenty-two townships in Lee County, Illinois, USA. As of the 2000 census, its population was 1,472. Its name was changed from China Township in 1994.
According to the United States Census Bureau, Franklin Grove Township covers an area of ; of this, (99.96 percent) is land and (0.04 percent) is water.
The township contains these two cemeteries: Franklin Grove and Temperance Hill.