A multifunctional rotary data memory, comprising a housing, a master control module, a memory, a first connector, and a second connector. The housing has an upper housing and lower housing. The upper housing and lower housing are movably connected and can relatively and rotatably move around a pivot shaft. The first connector is mounted on the upper housing. The second connector is mounted on the lower housing. The first connector and the second connector are both communicatively connected to the master control module. This breaks through spatial and angular limitations on the connection between an Apple device and a periphery device, is a simple apparatus for an Apple device to possess both the functions of a data line and a mobile memory, and is compact in volume and easy to carry.