The exchange velocities of some anion exchange resins were determined．It includes the following： (1) 3，5一Dinitrobenzoic acid was adsorbed by the exchanger made by the condensa—tion of one mole of tetraethylene pentamine and different amounts(2.5—3.0 moles) of epichlorohydrin； (2) Acetic acid was adsorbed by the exchanger of different particle size (0.315—0.630 mm)； (3) Different acids such as formic，acetic，caproic，hydrochloric，and 3，5-dinitro-benzoic acid were adsorbed by the exchangers； (4) 3，5-Dinitrobenzoic acid was adsorbed by the exchangers of tetraethylene pen-tamine—epichlorohydrin and its alkylated and quaternized products； (5) 3，5-Dinitrobenzoic acid was adsorbed by several modified resins of tetra-ethylene pentamine．epichlorohydrin． Two different methods (the limited batch method and the batch method) were used to determine the exchange velocity of the anion exchange resins，the results showed that the exchange rates were identical when the concentration of the hydrochloric acid was maintained at about 0.032 N．