Biomarker TFF1 for predicting effect of a c-Met inhibitor

Provided are a biomarker TFF1 for predicting effects of a c-Met inhibitor, a composition comprising a detection material of TFF1 for predicting effects and/or testing effects of a c-Met inhibitor, a composition comprising a detection material of TFF1 for selecting an application target of a c-Met inhibitor, a method for predicting effects and/or testing effects of a c-Met inhibitor using TFF1, a method for selecting an application target of a c-Met inhibitor using TFF1, and a method comprising a step of injecting a c-Met inhibitor to the selected application target for preventing and/or treating cancer.