Centrifuge　is　a　promising　tool　for　underwater　explosion　(UNDEX)　research　as　both　Mach　and　Froude　similitudes　could　be　satisfied　with　hyper-gravity　in　models,　which　would　result　in　similarities　in　both　shock　wave　and　bubble　oscillation.　Scaling　laws　for　UNDEX　in　centrifuge　have　been　proposed　based　on　dimensional　analysis.　Two　dimensionless　numbers,　i.e.,　pi(3)　and　pi(4),　are　used　to　characterize　shock　wave　and　bubble　oscillation,　respectively.　To　validate　scaling　laws,　17　UNDEX　tests　are　designed　by　varying　accelerations　or　explosive　weights　and　positions　in　centrifuge.　The　tests　are　classified　into　different　groups　to　validate　scaling　laws　as　well　as　calibrate　coefficients　in　empirical　formulae　for　both　shock　wave　and　bubble　oscillation.　The　results　show　that　changes　of　gravity　acceleration　or　hydrodynamic　pressure　almost　has　no　influence　on　shock　wave　peak　pressure　and　time　constant　as　long　as　pi(3)　is　constant.　The　dimensionless　bubble　period　and　maximum　radius　agreed　with　each　other　when　pi(4)　is　constant.　Based　on　the　research,　an　example　is　exhibited　to　suggest　method　for　the　computation　of　initial　loading　conditions　for　a　submerged　obstacle　subjected　to　UNDEX.