The invention discloses a testing table, a testing system and a testing method for brake load moment of a brake. The testing table for the brake load moment of the brake comprises a brake wheel, a pawl, a driving wheel, a first driving device, a second driving device and a rack, wherein the driving wheel and the brake wheel are both arranged on the rack, the first driving device is used for driving the driving wheel, the brake wheel is fixedly connected with the driving wheel, the brake wheel is provided with the pawl, the pawl is matched with ratchets, the second driving device is used for driving the ratchets, and one end of the pawl butts against the ratchets when braking is conducted. By means of the device, on-site braking tests do not need to be carried out on an escalator, corresponding testing data can be obtained by simulating the actual running process of the escalator on the device, on-site mounting and debugging work is reduced, debugging efficiency is improved, and potential safety hazards brought by the field tests are completely eradicated. The testing system and the testing method enable the testing process to be more convenient and enable the testing data to be more accurate.