At the beginning of the Qajar dynasty, Baluchestan was one of the first regions of Iran where British policy began due to its proximity to India, and it continued in various ways until the end of this period. Examining the goals and policies of the British in this part of Iran shows that the main problem that caused their colonial goals in Baluchestan continued to maintain the security of India, and according to them, various threats put this colony at risk; these factors led to setting up new strategies to maintain the security of India. In this study, these questions will be answered: What were the most important aspects of British policies in Baluchestan, and what were the effects of the domestic conditions and situation of India, the regional and global situation on their policies and plans in the neighboring lands of this colony? Some of the factors that are examined in the analysis and answer to these two questions are the internal conditions of Baluchestan, the European rivals of England, the policies of the Iranian government in the eastern regions, the Indian rebellion, the expansionism of the Russians in Central Asia, the extension of telegraph lines and the formation of the delimitation commission. Examining the contexts and factors of the continuation and evolution of British policy and specifying the results and implications of the policies used by them are among the main goals of this study. The findings show that the British achieved their goals in this part of Iran by determining the axes of their policy in Baluchestan and implementing them and by extensive interventions and implementing a long-term and precise policy to keep their colony, India, safe from lurking dangers.