Mechanisms of non-radiative recombination of electron–hole complexes inCd(Mn)Se/Zn(Mn)Se quantum dots accompanied by interconfigurational excitations ofMn2 + ions are analyzed within the framework of the single-electron model of deep 3d levels insemiconductors. In addition to the mechanisms caused by Coulomb and exchangeinteractions, which are related because of the Pauli principle, another mechanism due tosp–d mixing is considered. It is shown that the Coulomb mechanism reducesto long-range dipole–dipole energy transfer from photoexcited quantum dots toMn2 + ions. The recombination due to the Coulomb mechanism is allowed for any states ofMn2 + ions and e–h complexes. In contrast, short-range exchange and sp–d recombinationsare subject to spin selection rules, which are the result of strong lh–hh splittingof hole states in quantum dots. Estimates show that efficiency of the sp–dmechanism can considerably exceed that of the Coulomb mechanism. Thephonon-assisted recombination and processes involving the upper excited states ofMn2 + ions are studied. The increase in PL intensity of an ensemble of quantum dotsin a magnetic field perpendicular to the sample growth plane observed earlieris analyzed as a possible manifestation of the spin-dependent recombination.