A welding helmet includes a helmet housing; a headband structure for securing the helmet housing; a Head Up Display (HUD)-type auto-darkening filter secured in the helmet housing; and a light-permeable protective sheet installed in front of the HUD-type auto-darkening filter in the helmet housing, wherein the HUD-type auto-darkening filter comprises a head-up display which is used to reveal operating parameters of the auto-darkening filter, and the head-up display is arranged between a body of the auto-darkening filter and the protective sheet such that when the auto-darkening filter is in a transparent state the luminously revealed operating parameter of the auto-darkening filter can be imaged via the protective sheet into the eyes of an operator who wears the welding helmet.