【Abstract】ObjectiveTo explore the effects of RECK gene on the biological behaviors of hepatocellular (HepG2). MethodsThe RECK cDNA was transfected to HepG2 with lipofectamine 2000. Detected its protein expressions with Western blot before and after transfection, analyzed the effects of RECK on MMP-9 activity using gelatin zymography, observed the effects on proliferation ability by MTT assay and plate clone formation assay, compare the changes of invasion ability by cell adhesion assay and in vitro invasion experiment. Results RECK protein was expressed steadily in transfected HepG2 cells and the amount of activated MMP-9 were decreased significantly. Their proliferation abilities weren’t different before and after transfection but their invasion abilities decreased sharply. ConclusionRECK gene can transfect HepG2 cells by liposome efficiently. It can inhibit the activity of MMP-9 and the invasion ability of HepG2.