The Sr-M (M = Fe, Mn, Ni, Ti, V) systems have been modeled by means of the calculation of phase diagram (CALPHAD) technique, wherein the thermodynamic parameters of NiSr (the only intermetallic compound in the five systems), liquid, (aSr), (bSr), (aFe), (cFe), (dFe), (aMn), (bMn), (cMn), (dMn), (Ni), (aTi), (bTi) and (V) are obtained by using the experimental data. The gas phase for the three binary systems, Sr-Mn, Sr-Ti and Sr-V is treated with the ideal gas model. Comparisons between the calculated and measured phase diagrams show that the experimental information is satisfactorily accounted for by the present thermodynamic description.