The article analyzed the effects of vulnerability of transhumant herders to climate change on their livelihood in the North- Benin. A total of 100 herders were surveyed. Data such as perceptions of the manifestations of climate change, the socio-economic characteristics of transhumant herders, the impact of climate risks on livelihoods and livelihoods, the degree of vulnerability of transhumant herders and its determinants, etc. were collected during group and individual interviews using an interview guide and questionnaire. Data were analyzed using discourse analysis, sensitivity matrix, descriptive statistics and linear regression. Reduced rainfall, excessive heat during the day, irregular rainfall, early cessation of rainfall, pockets of drought, excessive heat at night, poor rainfall distribution and late onset of rains are the main perceptions of the manifestations of climate change in Nord-Benin. Flooding, drought and excessive heat are the climatic risks that have the greatest impact on livelihoods, according to the herders. Age and widowhood help to reduce the vulnerability of transhumant herders to climate change. On the other hand, traditional religion and years of experience increase the degree of vulnerability of transhumant herders to climate change. It therefore seems important to take age and widowhood into account to mitigate the adverse effects of climate change on transhumant herders.