This paper studies the current evaluation system for the online training program in meteorology and hydrology. CIPP model that includes context evaluation, input evaluation, process evaluation and product evaluation differs from Kirkpatrick model including reactions evaluation, learning evaluation, transfer evaluation and results evaluation in that the subject of evaluation is different. We take the advantages of the CIPP model and Kirkpatrick model in constructing an evaluation system for online training programs in meteorology and hydrology held by the WMO Regional Training Centre Nanjing, China so as to improve the effectiveness of the training programs and meet the demand of the national meteorological and hydrological services.