With the extension of detecting concentration, the rates of all samples tended to ascending drastically. Among three polysaccharides, ABMP-F exhibited higher DPPH radical scavenging rate than ABMP-V and ABMP-A at every concentration point, which implied that ABMP-F has the best DPPH radical scavenging ability and ABMP-A the worst. Considering the changes of the chemical composition of the three ABMP samples, it can be concluded that the DPPH radical scavenging abilities were influenced by different drying methods.