LAMOST DR7 V1.3 LRS A, F, G and K Type Star Catalog lists parameters for 6,159,427 A/F/G/K stellar spectra, including 94,908 A type star spectra, 1,893,014 F type star spectra, 3,099,821 G type star spectra and 1,071,684 K type star spectra, obtained by LAMOST low resolution survey during October 24th 2011 and June 8th 2019. Two formats of the catalog, a FITS table and a CSV table, are available on the website http://dr7.lamost.org/v1.3/catalogue.