The　aspect　ratio　of　the　column　has　a　significant　effect　on　the　sensitivity　of　a　load　cell.　Based　on　the　elastic　mechanics,　two　displacement　functions　are　derived　to　decouple　the　equilibrium　differential　equations.　Consequently,　the　distribution　for　the　strains　of　the　circular　cylinder　is　solved　with　aspect　ratios　between　0.6　and　1.0.　Results　of　numerical　computation　reveal　that　the　distribution　for　the　output　value　of　the　bridge　strain　varied　gently　that　is　far　away　from　the　end　of　the　load　cell,　which　is　the　same　as　the　distribution　of　the　axial　stain.　The　sensitivity　is　affected　by　the　hoop　strain　scarcely　at　about　0.4h　away　from　the　loading　end　when　the　aspect　ratio　is　1.0.　Distribution　of　the　absolute　value　presented　small　at　the　middle　position　while　big　at　the　both　ends.　The　sensitivity　of　the　end-effect　is　barely　influenced　by　the　aspect　ratio　near　the　loading　end.　However,　the　sensitivity　is　not　affected　by　the　aspect　ratio　near　the　loading　end　and　the　sensitivity　became　smaller　with　the　increasing　aspect　ratio　away　from　the　loading　end.　The　maximum　different　value　of　the　sensitivity　is　eventually　close　to　a　stable　value　59.3%.　©　2015,　Editorial　Departmentof　CJAM.　All　right　reserved.