The invention provides acrylic emulsion toughened plastic concrete with good deformation adaptability and a preparation method, and belongs to the technical field of impervious concrete engineering. The plastic concrete is prepared from, in parts by weight, 70 parts of common portland cement, 30 parts of low liquid limit clay, 7 to 20 parts of acrylic emulsion, 450 to 470 parts of sand, 20 parts of stone, 100 to 108 parts of water and 0.7 to 0.8 part of water reducing agent. The plastic concrete prepared by the invention has the technical advantages of easily available raw materials, sufficient compressive strength, low elastic modulus/strength ratio, strong adaptability to deformation, good impermeability, easy construction and environmental protection and no pollution, and can be used for buildings such as anti-seepage walls.