The invention relates to original location observation system under the shear field with laser light scattering and microscopy, and the system can also be used to liquid-crystal, emulsion, and other system's research under the shear field. The system includes laser light scattering and microscopy system, and the two systems share the sample pool with the heater on a platform, and precision controllable shear field imposed devices and total reflection coating mirror. The invention can precisely impose fixed or variable rate shear field to precise temperature experimental samples (polymer melt or solution, polymer blends alloy, etc.). Using stable output laser as light scattering source, through the lens group and CCD array detector to obtain the reflection form of reciprocal space and scattering patterns of structure, and meanwhile, in the same experimental conditions, switched to the microscope optical path, to obtain the shape and structure of real space, and comparing the obtained microscope pattern after FFT transfer with the corresponding scattering pattern, to verify generated concrete shape and structure under the shear field.