Preparation method of nano-composite strong far infrared mica heating plate

The invention relates to a preparation method of a nano-composite strong far infrared mica heating plate, which comprises the following steps of: spraying or curtain-coating a high-temperature adhesive capable of converting strong far infrared on the surfaces of two sides of first mica paper at high pressure to form modified mica paper with the adhesive capable of converting the far infrared and the high-temperature adhesive; high-temperature adhesives capable of converting strong far infrared rays are sprayed or curtained on the surfaces of the two sides of the second mica paper at high pressure, and modified mica paper with the adhesives capable of converting the far infrared rays and the high-temperature adhesives is formed; cutting the nickel-chromium alloy superconducting film into a conductive heating circuit through a laser cutting process; and placing the nichrome superconducting film which is cut to form the heating circuit between two pieces of treated modified mica paper, and pressing at 380-450 DE