An output parameter adjustment method employing an ambient light distribution field including: acquiring an environmental image of a background environment in a viewing angle range of a user; dividing the environmental image according to preset partitioning to obtain environmental sub-images; obtaining the illumination value of each environmental sub-image; splicing the illumination of all of environmental sub-images to obtain distributed illumination distribution information corresponding to the environmental image; obtaining a first illumination model corresponding to the illumination distribution information; querying a model-parameter list, to obtain a first adjustment parameter corresponding to the first illumination model; and adjusting, display parameters of a display screen of a user terminal and/or adjusting light compensation output parameters of a lighting compensation device according to the first adjustment parameter so that the display parameter of the display screen match an illumination state of the background environment in the viewing angle range of the user.