Abstract: Red-Mudstone is a special aggregation of rock and soil,during the construction of anti-floaty anchor in this kind of stratum,the red-mudstone has some bad characteristics,such as softening strength in water,forming plastic soil with high water content in the anchor hole after crushing,attaching mud to the hole wall and influencing the strength of anchor,forming dust polluted environment when entering the atmosphere,which often leads to disturbance of the bearing capacity of foundation soil,insufficient uplift bearing capacity of anchor rod and the industry environment is bad and so on.In view of the above problems,this paper improves the construction technology according to local conditions and the principles of green environmental protection,and verifies the feasibility of the improved technology through application examples.The improved antifloaty anchor construction technology has excellent popularization value,and can provide a certain reference for the construction of similar projects in the future.