Abstract The research was carried out on the attitude of teachers towards the inclusion of the mentally retarded learners in regular primary schools. This was because the feelings of most regular primary school teachers that these learners affect and lower the academic performance of their schools. therefore this learners are forced to repeat classes or drop off school. It is due to this attitude that mentally retarded learners are not accessing the regular classes. The researcher used the quantitative approach to collect data. The questionnaires here used to collect the data and later on the data was tabulated, the data was put into percentage and analyzed. out of 220 teachers 40 of them were sampled to fill the questionnaires. Very few teachers wish to have the mentally retarded learners into their classes. They feel that those children lower their academic performance in their schools. Due to that the teachers have not made modifications to accommodate the mentally retarded learners.