The invention relates to a method for controlling differential settlement at a joint point of the road and a construction in the technical field of constructional engineering. The method comprises the steps as follows: a lower pile foundation of the construction is constructed, that is, constructing cement-soil stirring friction piles and short piles used for the partial reinforcement of a groundwork, wherein, (1) the cement-soil stirring friction piles support the load transferred from the upper part by the surrounding friction of pile bodies; (2) the short piles are piled between long pilesand reinforce the soil between the long piles to ensure that an earth-retaining structure is integrated as a whole when excavating; a second step is the treatment of the groundwork within a slope junction section which comprises constructing deep stirring piles with variable lengths and a road of the slope junction section with the range of the protection of a soft soil foundation of the slope junction section; a third step is constructing a bedding course and a structure of the construction; a fourth step is constructing a modified plate within the range of the protection of the groundwork of the slope junction section; and a fifth step is paving the road. The invention not only can simplify the construction technology, reduce the construction expense and shorten the construction period but also can avoid the maintenance expense caused by the differential settlement.