This paper, as a follow-up study of Kim(2019), examines the correlation between the frequency and the deletion of intervocalic /d/ in the central Andean Spanish of Peru. Traditionally, studies on the deletion of intervocalic /d/ in Spanish have been carried out with multiple linguistic factors in order to find patterns of variation but the role of frequency effect was ignored in many of those investigations. Bybee’s work(2002) showed its usefulness in her data from New Mexican Spanish, so this theoretical concept was extended to other varieties of Spanish. The current study makes use of the data from 24 sociolinguistic interviews performed between 2015-2017 in Tupe district, Peru. CUMBRE corpus was used in order to define the degree of frequency of the words and 1920 tokens were analyzed. The results of this study indicate that the frequency effect correlates with the intervocalic /d/ deletion in the sense that the /d/ deletion increases as the token frequency increases in lexical instances. Regarding the type frequency effect, the results show that the most frequent grammatical morpheme -ado(s) is the context with the highest rate of deletion. However, there is no correlation between the frequency and the rate of deletion in morphemes(-ado[s], -ada[s], -ido[s], -ida[s]). Finally, the deletion rate of intervocalic /d/ in grammatical morphemes is similar to that of lexical instances, which allows us to interpret that the suffix is not treated as independent unit, but as a part of whole word in the central highlands of Peru.