Aromatic Polyester-based Polyurethane dispersions (PUDs) with about 50% solid content were synthesized using polyether diol containing sulfonate (SPPG), poly1,6-hexanediol phthalic anhydride(PHPA), hexamethylene diisocyanate(HDI) and ethylene diamine (EDA) by the acetone method. The surface tension of PUD were in the range of 34~45mN?m-1,which displayed good wettability. The average particle sizes of PUD were mostly in the range of 100 nm~250 nm and the particle size distributions of PUD were mostly in the range of 50 nm~200nm, which displayed excellent stabilization. The average particle sizes, viscosity, particle size distributions and surface tension changed regularly with hydrophilic group content (HGC), R value(NCO/OH molar ratio) and chain extension. TEM analysis showed spherical shapes of the particles with different sizes and bimodal distribution. PUDs were pseudoplastic fluid. Adhesive strength test showed good results for various materials, such as different kinds of PVC and wood.