Technologies for observing sea wind, wave and other marine dynamic environmental factors using radar altimeter, scatterometer, spectrometer and SAR (Synthetic Aperture Radar) is maturing. It has the disadvantage of large weight, poor stability, high power consumption and complex system for the existing single-star multi-sensor systems. In this paper, the development and application of the above four kinds of marine microwave remote sensors are reviewed firstly. Then, according to the current development trend, a new multi-mode integrated design method is proposed and described in detail. Finally, the multi-mode integration technology of space-borne ocean microwave remote sensor is prospected, which provides reference for the multi-mode integration research of ocean microwave remote sensor in the future.