Multiangle SAR refers to a new observation method that imaging system moves along a straight line and obtains continuous images of multiple different angle scenes in a large beam. In order to meet the data acquisition needs of multiple angles, observation beam usually takes more than 90 degrees. The use of ultra wide beam increases the complexity of the system, makes the observation parameters more complicated, and brings the challenge to the method of data acquisition and the system parameters design. This paper proposes a data acquisition method based on displaced phase center multiple azimuth beams technology, this method reduce the system’s PRF effectively. For the phase center spacing is too small in practical system design, put forward a interleaved data sampling method, the new method make the phase center spacing decided by the number of phase centers and the spatial sampling interval, which increases the flexibility of system design.