This Quasi-experimental research was to develop programs to promote language and speech ability by parents in children with intellectual disabilities. and to compare language and speech development before and after using the language skill and speech proficiency programs by parents of children with intellectual disability. The target groups used were 10 parents who were primary caregivers of children with intellectual disabilities and 10 children with intellectual disabilities aged between 5-8 years by purposive sampling. This research tool consists of 1) Parental Language and Speech Promotion Program 2) Parental Knowledge Test on Language and Speech Promotion Program 3) Language and speech ability assessment model. The statistical methods used in the analysis were Means, Standard Deviation (S.D.) and statistics to compare The Wilcoxon Matched Paris Signed – Ranks. The results showed that Language and speech promotion programs by parents With the program performance value equal to 81/87 higher than the specified threshold And has the effectiveness index of the program equals 0.75, within acceptable criteria And children with intellectual disabilities Having the ability to develop language and speech after training according to the program to promote language and speech by parents higher than before the program practice. Statistically significant at the level 0.05 Language and speech promotion program by parents Is a program that can be applied to children with special needs to promote language and speech development.