A cross sectional study was conducted to determine the sero-prevalence of contagious caprine pleuroneumonia in three districts of Tigray and Afar regions of Ethiopia namely; Kefta Humera, Alamata and Aba-'alla. Proportions and chi-square test statistics were used to analyze the data. From a total of 863 goats and 137 sheep tested, 282 (32.68%) and 25 (18.25%) were positive for antibodies of Mycoplasma capricolum subsp. capripneumoniae respectively using complement fixation test (CFT). The seroprevalence of CCPP in goats among the three districts was statistically significant (x 2 =76.00, p<0.001). In this study there was no statistical significant variation in the seroprevalence of CCPP in both sexes (x 2 =3.619, p=0.0571) and age (x 2 =0.990, p=0.095) groups. The finding of high seroprevalence of CCPP in sheep (18.25%) could indicate that sheep are potential carriers of Mccp.