Three types of state-to-state dielectronic recombination processes for Be-like ions Ti18+ have been investigated. Based on multi-configuration Hartree-Fock-Relativistic and distorted wave approaches, state-to-state dielectronic recombination rate coefficients have calculated at electron temperature 0.01~1.0keV, Variations of the coefficients with electron temperatures, recombination types and up-or down-states have also been discussed in detial.