Based on the definition of vulnerability by IPCC reports and literature review,investigation,and feedbacks from questionnaire, a vulnerability indicators system and the relative weight coefficients were established for assessing the vulnerablity of agro-production to climate change in the Loess plateau.Present vulnerability assessment was carried out for a few representing locations.It is expected in this paper to provide a methodological basis for assessing the regional vulnerability of agro-production to climate change and performing strategic response studies in the Loess Plateau.