This application provides an umbrella including an umbrella frame, supporting members, rotating shafts, fixing members, and umbrella surfaces. The umbrella surfaces are installed at the umbrella frame through connections of the supporting members and the fixing members so as to form a layered structure with a beautiful appearance and good breathability and ventilation. Each of the supporting members has installation arms which can be directly installed at the umbrella rib through the rotating shaft. Each of the supporting members has a first supporting surface and a second supporting surface cooperating with the umbrella rib to achieve limitation, which can limit a rotation range of the supporting members and reduce members such as a bracket, a spring and so on. The structure is simpler, and the assembly is very convenient.