The utility model belongs to the field of sound pick-up devices of musical instruments, and particularly relates to a sound pick-up structure of a
musical instrument, which comprises a positioning unit, the positioning unit comprises a body capable of being fixed at a specific position through self deformation and an accommodating space formed inside and / or outside the body, and the accommodating space is provided with an opening communicated with the outside. And at least one part of the
pickup device can be placed in the accommodating space through the opening, so that the
pickup device is close to a sound source through the fixation of the positioning unit. According to the utility model, the body with the deformable positioning unit can be fixed on an arm of a
human body, especially a
wrist, and the accommodating space is arranged in the body and / or on the surface of the body and can be used for loading the
pickup device, so that the pickup device can move along with the
human body after being loaded, and meanwhile, the pickup device can be used in harmonica, Xun, Xun, Xun, Xun, Xun, Xun, Xun, Xun, Xun, Xun, Xun, Xun, Xun, Xun and Xun. In the playing process of instruments such as ocarina and the like, the device can be closer to the instruments, so that the pickup effect is improved, and
resonance of the instruments is not affected.