In the last decade, liquid metal (LM) blanket-related key issues, such as the magnetohydrodynamics due to reactor off-normal shutdown, LM velocity two-dimensional effect, manifold three-dimensional effect, insulator coating imperfection effect, and so on, have been investigated in experiments and theoretic analysis in Southwestern Institute of Physics (SWIP). Some results were first observed such as the two-dimensional effect and the instabilities due to insulator coating imperfection in this field. These results also related to the advanced limiter-divertor plasma system. In this paper, we review the progress made by SWIP in this research field.