The invention relates to a cement stabilizing broken stone drying shrinkage performance testing method based on a small test piece, which belongs to the field of traffic building projects. The dryingshrinkage testing method employs the beam-type small test piece with a moulding size being 50 mm*50 mm* 210 mm. A static pressure method is employed for pressurizing different cement mortars to 400 KNat a speed being 1 mm/min to mould the cylindrical test piece; the cylindrical test piece molded under different cement dosages and the standard condition is preserved for 6 d, then is immersed intoconstant temperature water-bath at the temperature of 20 DEG C for being preserved for 1 d, surface moisture is dried, then 3 of 6 same test pieces are placed on a bearer and a dial gauge is used formeasuring drying shrinkage deformation, 3 other test pieces are placed under same condition, and are weighted at regular intervals, and counting is carried out according to a mean value.