The results of investigation of the DC magnetic and magnetoresonance properties of the FeCr2S4 single crystals at normal and high pressures are presented. The substantial pressure effect on the low field spin-glass like magnetization anomaly and on the Curie temperature was found. In the FMR spectra two resonance modes were observed, which have the non-monotonous temperature dependence of the integral intensity and correlate with the onset of the irreversible phenomena.