This study aims that during early childhood stage, access to quality education programs and books have a vital importance and in that context, public libraries' children departments have an essential mission to support preschool children. This is a descriptive study that used qualitative method. While collecting data of MIHK, observations, interviews, and documents were used as data collection technique and the data was analyzed in that sense. IFLA's "Guidelines for Children's Libraries Services" was used as a framework to evaluate the findings. According to the results, MCPL system is very successful in regard to accomplishing the terms of IFLA's guidelines to support preschool children; however in fulfilling all of these there is a definite need for strong financial structure and support from the society.