In Zambia, curriculum development for primary and secondary schools is done centrally. The Curriculum Development Centre (CDC), the institution placed with the responsibility of facilitating curriculum development, claims that the Zambian school curriculum is developed through a consultative and participatory approach through course and subject panels where teachers and other stakeholders are represented. However, there has been no empirical evidence to suggest the roles that teachers, who are the major implementers of the same curricular, are required to play in the development process. This study therefore, sought to establish perceptions of secondary school teachers on their role in the curriculum development process in Zambia. The concurrent embedded design of the mixed methods approach was employed with the qualitative approach dominating the study while the quantitative was used to add detail. Data from secondary school teachers was collected using questionnaires while interview guides were used for Head teachers. Raw data collected from interviews and questionnaires was analyzed using themes and descriptive statistics and then arranged into significant patterns so as to easily interpret and understand the essence of the data. The findings of the study clearly suggested that the majority of secondary school teachers in Lusaka were willing to participate in the curriculum development process, especially in situational analysis, in the formulation of educational objectives, in setting up the curriculum project, and in the writing of curriculum materials such as textbooks. From the study it was concluded that teachers were aware of some of the roles that they could play in the curriculum development but were not adequately involved in the development process.