The purpose of the study is to examine the challenges and attitude of teachers toward the implementation of Data Processing Curriculum in Secondary Schools in Ondo State of Nigeria. It is a survey research which employed a descriptive design. The sample for the study comprised of 200 teachers randomly selected from the ten secondary schools in Akoko South West Local Government Area of Ondo State. Twenty teachers were drawn from each school using purposive sampling technique giving a total of 200 respondents. A four likert- type of questionnaire was used as an instrument for the collection of data. A trial test was carried out to ascertain the reliability of the instrument using Cronbach alpha statistics technique and a value of 0.75 was obtained from the test. Two hundred copies of the questionnaire were administered in all the selected secondary schools. Mean was used to analyse and interpret the result obtained.Curriculum. The study also reviewed those things that must be put in place to ensure Data Processing curriculum is fully implemented in secondary schools in Ondo State. Two null hypotheses were generated and tested at 0.05 level of significance. It was revealed that availability of computer resources and availability of Data Processing (DP) Subject teachers had no significant influence on attitude of teacher toward the implementation of Data Processing Curriculum.