The invention discloses an automatic investigation data identification method based on graphic distribution, which comprises the following steps of: dividing strata in a geological profile map on survey software, determining the distribution range of each stratum in the geological profile map, and performing full filling on the distribution ranges of different strata by adopting an agreed graph; correspondingly attaching the survey data of each stratum to the fully filled graph; importing the geological profile map added with the survey data of each stratum into survey information of a crossing monomer corresponding to a CRDS software configuration end; and enabling the CRDS software to identify the stratum distribution of the imported geological profile map with the stratum information, and automatically read the survey data of each stratum. The beneficial effects of the invention are that the method achieves the real-time reading of the survey data in the crossing and spanning designthrough the combination of the survey data and the crossing and spanning design software, brings convenience to a crossing and spanning designer to check the stratum information at any time, improvesthe work efficiency, and further achieves the automation and refinement of the crossing and spanning design.