The invention discloses anti-high temperature filtrate reducer latex for a drilling fluid and a production technology of the anti-high temperature filtrate reducer latex. The latex is prepared from a first monomer, a second monomer, water, a gas-to-liquid, an emulsifier and an initiator, wherein the first monomer is an anionic monomer containing a sulfonic group or carboxyl; and the second monomer is a non-ionic monomer containing an amide group. The production technology comprises the steps of adding the first monomer to water, stirring, adjusting the pH to be 5-8 and cooling to a room temperature; adding the second monomer and stirring to obtain a water phase; heating the gas-to-liquid to a certain temperature, adding the emulsifier under a stirring condition and stirring to obtain an oil phase; adding the water phase to an oil phase, stirring and shearing to obtain a pre-emulsion; transferring 1/3-2/3 pre-emulsion to a reaction container, heating and introducing a protective gas; slowly adding the initiator and the remaining pre-emulsion and then further reacting; and stopping introducing nitrogen and stopping heating. The anti-high temperature filtrate reducer latex has the advantages of high temperature resistance and good stability.