Female Literacy rate and sex ratio are two important factors of population Study. Generally we say that literacy plays an important role in improving of sex ratio. Therefore, this paper tries to represent Correlation between Female literacy rate and sex ratio through case study of all districts of state of Haryana. Data was collected from census 2011. When we look at district wise data of Haryana about Female literacy and sex ratio, we find that Mewat district which is the most backward area of state has lowest Female literacy rate (37.38%) and highest sex ratio (906). while Highest Female literacy is in Gurgaon and Ambala (77.64%) having sex ratio (853)and( 882) respectively. This study reveals that Spearman's Rank correlation between sex ratio and Female literacy is R = -0.47. This value shows that moderate Negative correlation between Female literacy and sex ratio.