Abstract: On the basis of general discussion on Maximum Bubble Pressure Method (MBPM) for measuring dynamic surface tension (DST) of solutions a MBPM apparatus which can measure surface age up to 0.03 second was dcsigned. With special emphasis onaccurate measurement of DST a some detailed description and investigation of MBPM process were given. With the MBPM apparatus DST data of surfactant SDS and LAS solutions have beedexperimentally obtained, respectively. Rate constants of LAS adsorption at gas-liquid surface could thus be determined.