A method for constructing an active magnetic bearing controller based on a look-up table method, characterized by comprising the following steps: Step: building finite element models of an active magnetic bearing, and obtaining, by using the finite element models and based on a general universal Kriging model, two universal Kriging prediction models about actual suspension forces F̂ x, F̂ y being in association with actual displacement eccentricities x̂ 0, ŷ 0 and actual control currents î x, î y in X-axis and Y-axis directions; Step: creating, based on the two universal Kriging prediction models, two model state tables about the actual suspension forces F̂ x, F̂ y being in association with the actual displacement eccentricities x̂ 0, ŷ 0 and the actual control currents î x, î y to construct two corresponding look-up table modules with the two model state tables being built in, respectively; and Step: constructing an active magnetic bearing controller by using two fuzzy adaptive PID controllers, two amplifier modules, two look-up table modules, and two measurement modules in the X-axis and Y-axis directions, wherein the fuzzy adaptive PID controller, the amplifier module, and the look-up table module in the X-axis direction are connected in series and then connected to an input end of the active magnetic bearing; the fuzzy adaptive PID controller, the amplifier module, and the look-up table module in the Y-axis direction are connected in series and then connected to the input end of the active magnetic bearing; the two measurement modules in the X-axis and Y-axis directions measure the actual displacement eccentricities x̂ 0, ŷ 0 of the active magnetic bearing in the X-axis and Y-axis directions, respectively; the actual displacement eccentricities x̂ 0, ŷ 0 are input into the two corresponding look-up table modules, respectively; reference displacements x ∗, y ∗ in the X-axis and Y-axis directions are subtracted from the corresponding actual displacement eccentricities x̂ 0, ŷ 0 to obtain displacement errors e x, e y, respectively; initial control currents I x0, I y0 are obtained through the corresponding fuzzy adaptive PID controllers by using the displacement errors e x, e y, and actual control currents î x, î y are obtained through the corresponding amplifier modules by using the initial control currents I x0, I y0, respectively; the actual control currents î x, î y are input into the corresponding look-up table modules, and the two look-up table modules output the corresponding actual suspension forces F̂ x, F̂ y to the active magnetic bearing. Step: building finite element models of an active magnetic bearing, and obtaining, by using the finite element models and based on a general universal Kriging model, two universal Kriging prediction models about actual suspension forces F̂ x, F̂ y being in association with actual displacement eccentricities x̂ 0, ŷ 0 and actual control currents î x, î y in X-axis and Y-axis directions; Step: creating, based on the two universal Kriging prediction models, two model state tables about the actual suspension forces F̂ x, F̂ y being in association with the actual displacement eccentricities x̂ 0, ŷ 0 and the actual control currents î x, î y to construct two corresponding look-up table modules with the two model state tables being built in, respectively; and Step: constructing an active magnetic bearing controller by using two fuzzy adaptive PID controllers, two amplifier modules, two look-up table modules, and two measurement modules in the X-axis and Y-axis directions, wherein the fuzzy adaptive PID controller, the amplifier module, and the look-up table module in the X-axis direction are connected in series and then connected to an input end of the active magnetic bearing; the fuzzy adaptive PID controller, the amplifier module, and the look-up table module in the Y-axis direction are connected in series and then connected to the input end of the active magnetic bearing; the two measurement modules in the X-axis and Y-axis directions measure the actual displacement eccentricities x̂ 0, ŷ 0 of the active magnetic bearing in the X-axis and Y-axis directions, respectively; the actual displacement eccentricities x̂ 0, ŷ 0 are input into the two corresponding look-up table modules, respectively; reference displacements x ∗, y ∗ in the X-axis and Y-axis directions are subtracted from the corresponding actual displacement eccentricities x̂ 0, ŷ 0 to obtain displacement errors e x, e y, respectively; initial control currents I x0, I y0 are obtained through the corresponding fuzzy adaptive PID controllers by using the displacement errors e x, e y, and actual control currents î x, î y are obtained through the corresponding amplifier modules by using the initial control currents I x0, I y0, respectively; the actual control currents î x, î y are input into the corresponding look-up table modules, and the two look-up table modules output the corresponding actual suspension forces F̂ x, F̂ y to the active magnetic bearing.