Provided are a multimedia data processing method, a multimedia data generation method, and a related device, which relate to the technical field of computers. The processing method comprises: acquiring multimedia data; displaying an editing page, wherein the editing page displays material data in the multimedia data; in response to a marking operation being carried out on at least one piece of material data, marking the at least one piece of material data; and in response to a template generation instruction, removing the marked material data from the multimedia data and generating a template.