Monte Carlo simulation is used to study the magnetic properties of cluster dendrimers (CD) of core/shell (CDCS). The ground state phase diagrams of the CD of core/shell with mixed spins sigma = {+/- 3/2; +/- 1/2} and S = {+/- 2; +/- 1; 0} has been determined. The Neel temperature t(N) is obtained for two configurations (z = 2 and z = 3) and for different size of system. There is magnetic compensation at non-zero temperature for z = 2. Effect of exchange interactions between the mixed spins, crystal field and size of system(L) on total magnetization has been given. Magnetic hysteresis cycle is given for different size of system, temperatures and exchange interactions. (C) 2017 Elsevier B.V. All rights reserved.