As a major means to practise low-carbon development，carbon labelling is arousing extensive attention in the world. Carbon label is a comprehensive index evaluation system integrating data and management to show consumers of the carbon information of products by means of labeling. It mainly quantifies and evaluates the greenhouse gas emissions generated by human activities directly and indirectly. At present，government departments and industry associations in many countries have begun to explore to promote the product carbon labels. They are committed to building a multi-dimensional enterprise green credit system，which can play a positive role in global carbon emission reduction. With the increased popularity of carbon label，more and more companies are taking up their social responsibility and actively promoting a low-carbon transformation of their industries to reduce emissions during the production of their products. A number of excellent industry examples of implementing carbon labelling have emerged.