The research status and dynamic of single fiber imaging technology are thoroughly discussed. A single multimode optical fiber is used in optical fiber imaging technology. The optical fiber is not only an imaging device, but also an image transmission device. Without scanning devices and imaging lenses, the scene within the fiber view scope can be transmitted from one end to the other end of fiber, so the single optical fiber imaging technology is also called wide-field fiber imaging technology. The technology can reduce the diameter of imaging fiber probe and realize ultrathin endoscopic imaging. The single optical fiber imaging technology burgeoning from holographic optics and Fourier optics is one kind of computation imaging methods, and it includes transmission matrix method and phase compensating method. For multimode fiber, if the transmission matrix in frequency domain or space domain can be obtained in advance, the object image can be recovered from the output light field of fiber, and the wavefront distortion of beam through the fiber can also be measured in advance. The introducing of conjugate phase field of wavefront distortion in the imaging system can eliminate the corresponding phase distortion, and the undistorted object image can be obtained at the output end.