【Abstract】To elaborate the research value of all kinds of fat suppression techniques and quantitative analysis techniques of MRI in hepatic steatosis. In this review, we compared and demonstrated the imaging principles, advantages and disadvantages, and advances in clinical research of all major types of MRI fat suppression techniques and fat quantitative research techniques. Frequency selection inversion pulse fat suppression sequence (SPECIAL) and least square estimation waterfat separation technique of asymmetric echo iterative decomposition of water and fat (IDEAL) have excellent effects on fat suppression, and the latter can be superior to the former. Magnetic resonance spectroscopy (MRS), dualgradient echo imaging and IDEALIQ technique have important clinical value in the quantitative research of liver fat, and MRS and IDEALIQ can be superior to any other sequence.