This review elaborates contents of remote-sensing monitoring of coastal saline soil and advancement in monitoring technology at home and abroad, while pointing out existing problems and future development trendr. In recent years, the technology of space identification in remote-sensing monitoring of coastal saline soil has gradually evolved from visual interpretation based on image spectrum and hue characteristics towards computer automated interpretation; in inverting coastal saline soil properties, from statistical modeling based on discrete samples to spatially continuous intelligent inversion; in monitoring salinization degree, from mere characterization of salinization degree with soil physical and chemical properties to monitoring of overall coastal ecosystems. However, remote-sensing of the coastal saline soil is deeply affected by factors, like soil moisture, vegetation, etc., and subject to large spatial uncertainty. Therefore, the research still has much room for development in inversion accuracy, model universality and data management. To sum up, the remote-sensing monitoring of coastal saline soil is developing towards of timeliness, dynamicity and intelligentization. It is an inevitable trend of the research in this field in future to build up a multi-scaled general model for inversion of quality of coastal saline soil and efficient mechanism for management of mega-store of saline soil remote-sensing data.