Abstract:This paper discusses the influence of open government data and big data of science and technology on the evaluation method and process of scientific and technological innovation ability, and puts forward a new idea of evaluation on scientific and technological innovation ability under the background of open government data, so as to provide guidance and reference for opening and using the data of government science and technology. The paper analyses the evaluation process of the new idea, takes the application of government science and technology open data in the evaluation of intellectual property rights in Guangdong province as an example, compares general evaluation methods, and explains their differences, advantages and prospects of that. The opening and sharing of sci-tech data makes it possible to obtain rich, diverse, objective, timely, accurate and precise evaluating data, which will effectively promote the innovation and change of evaluation methods and processes.