Carboxyl-terminated itaconic acid based polypropylene glycol (400) monoester (IPM) was synthesized by itaconic anhydride (IAn) and polypropylene glycol 400 (PPG 400) as the raw material through esterification reaction, and its structure was characterized by Nuclear Magnetic Resonance (1H NMR) and Infrared Spectrometer (FT IR). And then the itaconic acid based polypropylene glycol (400) monoester carboxylate Bola surfactant (Saa-K) was synthesized by neutralization of IPM with potassium hydroxide (KOH). The surface tension, critical micelle concentration (CMC), foaming characteristics, etc. were studied. The surface tension of Saa-K was 32.46 mN/m, CMC was 2.193×10-3 mol/L; TK1 was less than 0 °C, TK2 was 54.3 °C, foaming volume was 55.13 mL, and foaming life was 1940 min.