Deep cement mixing (DCM) is one of the geotechnical solutions to protect riverbanks or to prevent erosion along beaches. The horizontal bearing capacity of the DCM is insufficient to resist high lateral loads which may lead to large horizontal displacement or even failures of the structure. Therefore, the lateral resistance of the DCM material is the main challenge which needs to be studied in depth. This paper is going to summarise previous studies on the lateral response of DCM to improve embankment and to strengthen retaining walls. In addition, lateral resistance improvement methods, such as using steel beams, concrete piles, T-shape columns, fibres, anchors, and PVDs, are presented based on previous research. This review is significant for the design of DCM structures under high horizontal loads.