Every society develops its curriculum according to its needs and philosophical thoughts. A peaceful environment is an important element for the overall development of society. The researcher conducted a content analysis of peace education in the English curriculum in grade 10th at the secondary level in Punjab. The qualitative research design was adopted and the suggested framework by Braun and Clarke in 2006 was applied to the content analysis to analyze one aspect (Affective phase) of Castro and Galace Model of Peace Education. The concept map instrument based on the aspect of peace values was developed. The concept map tool was validated through experts’ opinions while experts’ peer reliability was established. The aspects of peace education were analyzed in the English textbook of grade 10th based on content, learning objectives and activities. The text was examined, noted and explained in the concept framework to find out the quality of the description. The learning objectives of the English curriculum in grade 10th at the secondary level reflected that peace education has not been satisfactorily addressed. Only eleven aspects of peace education are represented and there is no content on the value of gender equality. Only four units out of 13 (31%) directly addressed peace values. It is recommended to revise the English curriculum, integrate peace aspects and give equal weightage to all aspects of peace education.