This paper summarizes the common methods for studying of skarns and skarn deposits both macroscopically and microcosmically,including remote sensing interpretation,physical geographical prospecting,field geological mapping,petrography(or mineralogy) and mineralogy,mineral phase equilibrium,fluid inclusion and stable isotope,the new means developed recently such as remote sensing interpretation and quantitive calculation for mineral phase equilibrium are introduced especially.The consideration of integration of macroscopic and microcosmic methods and constant introduction of new means in the skarn deposit studies have important significance in further revealing the formation and distribution of skarn deposits,and understanding their petrogenic and metallogenic mechanism.