Abstract: The urban development and infrastructure of Hong Kong are basically built on hillside slopes of 20 to 50 degrees. Landslide hazard is therefore the severest natural hazard phenomenon in Hong Kong. Since 1950s, in particular, since 1975, engineers and researchers in Hong Kong have done tremendous work and investigations in landslide hazard control and mitigation. They have made many significant achievements. Over the many years, they have established a comprehensive methodology on urban landslide hazard management and mitigation. This methodology has been improved and refined during ongoing engineering practice. The efforts have enabled Hong Kong slope safety to become the highest standard in the world. The landslide hazard management and prevention have contributed significantly to the development and prosperities of Hong Kong. Such experience and methodology should benefit to the relevant work in the Mainland China and other cities in the world.