For the problem of calculating the bearing capacity of foundation soil by the flat dilatometer test (DMT),a variety of common method and briefly introducing DMT are analyzed.Combined with engineering investigation on the Zhuhai-Macau artificial island of the Hong Kong-Zhuhai-Macao Bridge,with correlation analysis and statistics and regression of DMT data with parameters of static cone penetration test,the empirical formula for calculating the bearing capacity of the foundation using DMT is derived.The results compared with other methods to calculate the foundation bearing capacity,show that the flat dilatometer test (DMT) foundation bearing capacity is feasible,and the results should be examined and corrected with regional experience.