Today's environmental problems have attracted economists' attention towards the approach of sustainable development and prepared the ground for designing the index of green gross national product (Green GDP). The present paper, which elaborates on Islamic approach to the index of gross domestic product, seeks to answer the question about the kind of product approved by Islam. Using an analytical approach, it proposes the proposition that the discourse of the Quran and traditions lays emphasis on the agreeable and lawful products, called halal and tayeb, rather than on green product. This different religious approach calls for fundamental changes in national accounting, production policy-making and planning for future development. In this approach, the common index of Net domestic product (NDP) can be adjusted in as far as disagreeable products, expenses, and environmental, social, and moral interests are concerned. The proposed index which is called the index, of agreeable net Domestic (PNDP) product, shows the value of good goods and services which belong to in a specific period of time.