The invention discloses a magnetic
resonance frequency and phase position double-encoding sampling method and an image
reconstruction method. The sampling method comprises the following steps of (a) setting an acquisition sequence and acquiring k-space data; (b) performing N-time over-sampling to the
frequency encoding gradient direction according to the acquisition sequence during acquisition and simultaneously adding
frequency encoding gradient and phase position encoding gradient to
control data acquisition tracks; (c) filling the data acquired in the step (b) into a k-space through an
analog to digital converter (ADC) to form the k-space with an inclination factor N, wherein data points of the k-space are distributed along the
frequency encoding gradient direction and the phase position encoding
gradient direction in an inclined N*m rows*n columns mode, and (N-1) blank data points are filled between every two adjacent actually acquired data points in the frequency encoding direction and the phase position encoding direction, the N is an integer larger than 1, and the m and the n are positive integers. The magnetic
resonance frequency and phase position double-encoding sampling method enables phase positions and frequency to be encoded simultaneously so as to control the k-space sampling tracks, enables acquisition times to be less than the acquisition s times of a traditional acquisition s mode, shortens the total
acquisition time and enables reconstructed images not to have image artifacts basically.