Abstract: A ceiling fan blade assembly structure includes a blade holder, multiple fan blades, and multiple locking assemblies. Multiple fan blade assembly portions are disposed at an outer side of the blade holder. Each fan blade assembly portion includes two first side plates parallel to each other, a first radial positioning portion, and two first vertical positioning portions disposed on the two first side plates. Each fan blade has a fan blade connection portion that includes two second side plates, a second radial positioning portion, and two second vertical positioning portions. The second and the first radial positioning portions are engaged with each other, and the two second and first vertical positioning portions are engaged with each other. Accordingly, the fan blade connection portion is preliminarily positioned on the fan blade assembly portion. Through the locking assembly, the first and the second radial positioning portions are locked together.

Abstract: An integrated ceiling fan and a ceiling fan connecting device are provided. The integrated ceiling fan includes the ceiling fan connecting device, a ceiling device, and a ceiling fan device. The ceiling fan connecting device includes a connecting housing and a connecting seat, and the connecting housing has a top surface, a surrounding side surface that surrounds and is connected to an edge of the top surface, and a plurality of mounting slots that are recessed from the top surface. The ceiling device includes a ceiling housing and a plurality of first fixing members that are locked to the ceiling housing and the top surface of the connecting housing. The ceiling fan device includes a motor housing, a plurality of second fixing members that are respectively located in the mounting slots and are locked to the motor housing, and a ceiling fan main body.