Abstract: By outlining the present state of study on fluid mechan- ics in porous medium of low permeability reservoir and sum- marizing the present experimental approach to the fluid me- chanics in low permeability reservoir,the imperfection in the current research methods on the fluid mechanics are pointed out.and the application perspectives of the method integrat- ed the visualization of physical model and the advanced ex- periments with the digital core of pore level in the sphere of oilfield development.The detailed processes of displacement can be clearly observed through the experiment of visualiza- tion model,helpful to ascertain the flowing state of fluid in the process of displacement.The method integrated limited experimental data and the digital core of pore level can be used to the studies on the fluid microscopic mechanics in por- ous medium of low permeabiiity reservoir,the simulation ex- periment of displacement,the evaluation of displacement effect,and so on.