The aims of this study were (i) to isolate and identify actinomycetes strains that were recorvered from intensive shrimp ponds in Tam Giang lagoon in Thua Thien Hue province; (ii) to study on the enzymes and antimicrobial activity on the pathogenic bacteria Vibrio parahaemolyticus to cultured shrimp; and (iii) to study on the virulence of recovered actinomyces strains to shrimp in the in vitro condition. The isolates were isolated from the following method of Lakshmi et al. (2008) and identified by 16s rRNA gene sequencing. Five actinomycete isolates (DH A1, DM A1, DM A2, PH A1 and QN A1) were isolated from shrimp pond’s sediment and the 16S rRNA gene sequences of these five isolates showed the identities from 94 - 98% with those of Streptomyces sampsonii strain ATCC 25495 through the BLAST analysis. The isolates were then investigated how their abilities produced antibacterial compounds, enzymes as well as haemolytic activity. Five isolates showed antimicrobial activity against V. parahaemolyticus. These isolates were non-heamolytic on the Rose-Bengal medium with hemolymph of shrimp added. In addition, PH A1 and QN A1 were able to increase enzymatic activity by producing cellulase, amylase, and gelatinases while DH A1, DM A1, DM A2, and QN A1 produced cellulase, amylase, and lipase. Results from this study provided the first insight into characteristics of marine actinomycete isolates recovered from shrimp ponds sediments in Thua Thien Hue.