Mudflat topography-based surveying and mapping method and system, storage medium and intelligent terminal

The invention relates to a mudflat topography-based surveying and mapping method and system, a storage medium and an intelligent terminal, and relates to the field of surveying and mapping detection, and the method comprises the steps: obtaining the current position information of an unmanned ship, the corresponding underwater depth information and the current shore image information; according to the current ashore image information and the current position information, calculating current marker-to-water height information between the ashore marker and the water surface; matching current altitude difference information of the shore marker from a preset altitude information database; calculating current total height information according to the current marker-to-water height information and the current underwater depth information; calculating current total difference value information; comparing a difference value corresponding to the current total difference value information with a preset flattening ampli