We have studied the dependences of the spectra of absorption and photoluminescence of dimethylaniline ethylene ketone (DMAEK) dye dissolved in ferroelectric liquid crystals (FELCs) on the temperature. We have revealed the significant dependences of the spectra, of absorption and luminescence of DMAEK dyes on the phase of the liquid crystal matrix, which testifies to the essential influence of the ordering of the matrix on both the intermolecular interaction of molecules of the dyes and the process of formation of aggregates.