NOVELTY - An enamel steel plate methane tank bonding agent comprises silicon rubber as a base material, hydroxy silicone oil as a toughening agent, quartz powder as a corrosion-resistant material, gas-phase white carbon black, precipitation white carbon black, pigment carbon black, methyltrissilane as a curing agent, gamma-aminopropyl triethoxy silane, N-(beta-aminoethyl)-gamma-aminopropyl triethoxy silane as a coupling agent, hexamethyldisilazane as a water scavenger and dibutyl-tin-laurate as a catalyst.    USE - Bonding agent for use in an enamel steel plate methane tank.    ADVANTAGE - The agent is convenient to use, and has excellent adhesion performance, corrosion resistance performance, toughness and high and low temperature resistance performances, and ensures service life of an enamel steel plate methane tank.    DETAILED DESCRIPTION - An enamel steel plate methane tank bonding agent comprises 107 pts. wt. silicon rubber as a base material, hydroxy silicone oil as a toughening agent, 80-100 pts. wt. quartz powder as a corrosion-resistant material, 30-50 pts. wt. gas-phase white carbon black, 4-8 pts. wt. precipitation white carbon black, 30-50 pts. wt. pigment carbon black, 2 pts. wt. methyltrissilane as a curing agent, 2 pts. wt. gamma-aminopropyl triethoxy silane, 10-20 pts. wt. N-(beta-aminoethyl)-gamma-aminopropyl triethoxy silane as a coupling agent, 1-2 pts. wt. hexamethyldisilazane as a water scavenger and 0.3-0.6 pts. wt. dibutyl-tin-laurate as a catalyst. An INDEPENDENT CLAIM is also included for a method for preparing an enamel steel plate methane tank bonding agent, which involves mixing the silicon rubber, the quartz powder, the gas-phase white carbon black, the precipitation white carbon black, the pigment carbon black and the hydroxyl silicon oil in a kneading machine, raising temperature to 120 degrees C, performing vacuum dehydrating for 3 hours, milling the mixture uniformly till, placing the grinded product in a planetary mixer, and adding the mixture with the gamma-aminopropyl triethoxy silane, the N-(beta-aminoethyl)-gamma-aminopropyl triethoxy silane, the hexamethyldisilazane and the dibutyl-tin-laurate to obtain a final product.