This study aims to describe the acquisition of vocal sounds, consonants, and explain the phonological acquisition of children aged 2; 5 years. The method used by the researcher is descriptive method. Data sources in this study were obtained from a child named Akhwa Febrianto. The results of this study show that Akhwa has produced and obtained phonemes that can distinguish the meaning of the words he says. Akhwa is well say in the phonemes [i], [u], and [a]. Then, Akhwa has said many vocal and consonant sounds like [a] [b], [c], [d], [e], [i], [j], [k], [l], [m ], [n], [p], [t], and [u]. Meanwhile, for certain phonemes Akhwa has not been able to say it like consonants [g], [r], [s], [y]. Based on the results of data analysis, it can be concluded that Akhwa's phonological acquisition is in accordance with the theory used.