The invention relates to an optical imaging method based on Fourier optical fields and correlated imaging. An image of a target object is represented by using discrete pixels; the method comprises thefollowing steps: illuminating by adopting the light with four wavelengths, construing Fourier optical fields through the different light transmittances on the target object, and acquiring four bucketdetector values; by adopting Metasurface manufacturing, binding four strength signals obtained by irradiating target object pattern pixels by four optical fields as a modulation block, wherein each strength signal is corresponding to the transmittance of one wavelength, thereby finally constructing an image of the object. Different optical fields are used for illuminating, and different optical field signals are combined as one, so that the measurement frequency is reduced; and once measurement correlated imaging is realized by regulating wavelength and space location through Metasurface andregulating the transmittance.