The UK announced the circulation of polymer banknote in the denomination of £5 in 2016. This unveiled a new era of the use of banknotes where paper money is not the only choice and polymer banknote has gained its position as a form of legal tender. The use of polymer banknote is closely associated with the environmental protection issue of energy saving and carbon reduction and has attracted much of the attention of the governments all over the world. Polymer banknote is much more durable than its paper counterpart, and could help to mitigate the pollution caused by the production process of printing banknotes. However, the use of polymer banknote still accounted for a very small proportion in the circulation of banknote. As for the people of Taiwan, polymer banknote is nevertheless a ＂brand new＂ product. Many have never ever heard about this form of banknote nor used it before. For this reason, this paper attempts to explore the aspiration of the people in northern Taiwan in using this ＂brand new＂ product from the perspective of the diffusion of innovations theory. Literature review and a questionnaire survey will be conducted to find out the factors affecting the inclination of the public towards the use of this new product.