Abstract: According to angular spectrum theory, the distribution of acoustic radiation force acting on the planar levitation object is derived. Through numerical simulation, the influence of transducer frequency, element spacing and the number of elements on the acoustic radiation force distribution is analyzed. The analysis result shows that the transducer array enhances the intensity and directivity of acoustic radiation force; with the increases of fre-quency, element spacing and the number of array elements, the main lobe of acoustic radiation force distribution becomes sharper. However, increasing element spacing will raise sidelobes of acoustic radiation force distribution. In order to improve space distribution of acoustic radiation force and to form multi-focus acoustic radiation force distribution, the amplitude and phase of the each element are adjusted by using the pseudo inverse matrix algorithm and choosing sound intensity gain as the objective function. It provides help for regulating the distribution of acoustic radiation force and for the study of acoustic levitation stability.