Instead　of　using　the　traditional　detectors　made　of　a　series　of　concentric　annular　rings　with　a　small　aperture　in　the　center,　a　high　sensitivity,　low　noise,　high　resolution　and　cooled　CCD　is　employed　to　detect　the　scattering　pattern.　An　optical　fiber　is　placed　in　the　focal　point　of　the　receiver　lens　to　make　the　transmitted　light　away　from　the　optical　axis.　The　image　of　scattering　pattern　recorded　by　CCD　can　be　processed　to　get　the　curves　of　light　intensity　distribution　with　the　scattering　angle.　Further,　the　particle　size　distribution　can　be　calculated　by　Mie　scattering　code　with　inversion　technique.　It　is　possible　to　measure　very　diluted　dispersions　or　fogs　with　CCD　based　low　angle　elastic　light　scattering　measurement　system　due　to　its　high　sensitivity,　high　angular　resolution.　Although　low　angle　elastic　light　scattering　seems　a　more　accurate　method　for　its　measurement　principle,　it　is　not　an　intuitive　method.　Normally　the　accuracy　of　laser　particle　sizing　is　verified　by　standard　particles　which　are　measured　by　other　optical　methods.　A　non-optical　method　is　suggested.　A　mono-disperse　droplet　generator　is　used　to　produce　a　chain　of　droplets　with　same　size,　same　droplet　spacing　to　verify　the　laser　scattering　droplet　sizing　results.