  Europa has been conf irmed to have a multilayered structure and complex
geological condition in last two decades whose detail and cause of formation
remains unclear.In this work,we start from analyzing the mechanism of tidal ef
fect on satellite's surface and discuss if interaction like tidal locking and
orbital resonance play an important role in tidal ef fect including
heating,underground convection and eruption.During discussion we propose the
main factors affecting Europa's tidal heat and the formation mechanism of
typical shallow geological features,and provide theoretical support for further
exploration.
