Historic cities arose under the influence of many factors that shaped the ancient city with its distinctive characteristics and values. When planning cities, it was taken into account to provide comfort to their users, preserve the surrounding environment, and not consume its resources. This was reflected in the historic city by directing its streets, securing its boundaries, providing sources of fresh water, and paving roads. Then, the historic cities went through many stages of deterioration, decline or prosperity till today. Recently, the concept of green cities has emerged, which aims to sustain buildings and preserve the environment, through a set of standards based on adapting and reducing the phenomenon of climate change. Therefore, the study came with the aim of rooting historic cities from the perspective of green cities by applying green city standards. Then, develop solutions to overcome the problems of cities in a way that ensures the transition to green with respecting their characteristics and values. The current study relied on the use of analytical methodology to analyze the characteristics of historic cities and green cities standards, which was followed by the applied methodology to embrace these characteristics and standards in historic cities in the light of current threats to support their green transformation. From the study, it was found that the historic cities were green cities, but as a result of modernity, environmental changes and changing activities, they no longer meet the standards of green cities. Therefore, the study suggested a proposal for converting to green through a set of measures.