The invention discloses an automatic carrying device of a spool of a stranding machine. The automatic carrying device is characterized by comprising a carrying robot and a spool grip, wherein the carrying robot comprises a longitudinal moving mechanism, a vertical moving mechanism, a transverse moving mechanism and a rotary mechanism, the vertical moving mechanism is arranged on a longitudinal sliding block of the longitudinal moving mechanism in a sliding mode, the transverse moving mechanism is arranged on a vertical sliding block of the vertical moving mechanism in a sliding mode, the rotary mechanism is arranged at the lower end of a transverse sliding block, the lower end of the rotary mechanism is provided with the spool grip, and the longitudinal moving mechanism, the transverse moving mechanism, the vertical moving mechanism and the rotary mechanism achieve movement of the tail end executor spool grip of four degrees of freedom in longitudinal, transverse, vertical and rotary directions. According to the automatic carrying device, a servo system is adopted, actions are accurate and stable, a human-computer interface is adopted for operation, and operation is flexible.