The study was investigated the control ability of bacteriophage for bacterial grain rot caused by Burkholderia glumae in the field conditions. The field experiment was followed randomized completely block design at Vinh Long province with six treatments (i.e. single phage Φ AG58 (10⁸ pfu/ml), single phage Φ AG58 (10⁷ pfu/ml), phage mixture (10⁸ pfu/ml), phage mixture (10⁷ pfu/ml), Starner 20 WP and control untreated) and four replications. The reults showed that the infected grain rot and AUDPC of phage treatments gave significantly lower than the control at level 5%. The disease reduction of Φ  AG58 (10⁸ pfu/ml) and phage mixture (10⁸ pfu/ml) were expressed over 50%. The actual yield of bacteriophage treatments had higher than the untreated control. In which, the phage mixture (10⁸ pfu/ml) showed  the best treatment  in yield.