The invention relates to a high performance double multiple thin layer micro-contact mixer used for rapid mix, mass transfer and reaction of fluids in the chemical process, which belongs to the fieldof reaction and separation devices of chemistry and chemical engineering. The micro-contact mixer is formed by inserting an upper cavity chamber and a lower cavity chamber into an integral shell or bylapping closely connected shell components; a fluid inlet pipe of material A and a distribution chamber are communicated with a fluid parallel channel of material A; a fluid inlet pipe of material Band a distribution chamber are communicated with a fluid parallel channel of material B, thus forming the lower cavity chamber; a fluid mixing chamber and a mixed fluid outlet pipe are communicated toform the upper cavity chamber; two fluids enter the mixer from the inlet pipe through the distribution chamber respectively to make multiple thin layer contact in the fluid mixing chamber to realizerapid mix, mass transfer and reaction. The micro-contact mixer has the advantages of high mass transfer efficiency, high operational elasticity, uneasy blocking, easy processing and manufacturing andhas good prospects in mixing and reaction fields such as the chemistry, chemical engineering, petrol-chemical industry, medicine and food.