Sacbrood virus (SBV) is an infectious disease which affects the brood of honeybees, resulting in failure to pupate and death. A loop-mediated isothermal amplification (LAMP) assay allows one-step detection of gene amplification without expensive equipment such as thermocycler. The SBV-LAMP method was developed for detection of SBV easily and rapidly. A set of four designed primers named SBV-F3/B3/FIP/BIP that recognize SBV specific sequence. After optimization of conditions, SBVspecific amplification was successfully performed using SBV-LAMP from standard. SBV-specific template under isothermal conditions at 57°C within 60 minutes. The method could be detected SBV in DNA clone at 103copies/μl, also could be applied not only cDNA but also field samples. Especially, this method was developed direct detection analysis by the naked eye using SYBR Green I, Gene-FinderTM Nucleic acid fluorescent dye and phenol red. SBV-LAMP may be expected to be useful for the specific detection of SBV in field and for the monito ring of natural infection in Apis mellifera L. by SBV.