The energy distributions for 27 giants and supergiants of the M spectral type are presented in the region of 3200-7600{AA} with the step of 50{AA}. The observations were made in the Fessenkov Astrophysical institute (Alma-Ata) during 1986-1987 with a spectrophotometer of Seya-Namioka mounted on the 50-cm Cassegrain telescope. The primary standard is Vega with the energy distribution by Hayes (1985IAUS..111..225H). The relative r.m.s. of the results are given in the table3.dat.