A light-emitting device includes a first electrode, at least two light-emitting units and a second electrode sequentially stacked in a first direction. The at least two light-emitting units include a first light-emitting unit and a second light-emitting unit. The first light-emitting unit includes a first light-emitting layer. The second light-emitting unit includes a second light-emitting layer. A light-emitting layer of each light-emitting unit includes a first compound, a second compound, and a third compound. An absolute value of a difference between ratios of weights of first compounds in different light-emitting layers to weights of the light-emitting layers to which the first compounds belong is in a range of 0% to 3%, and/or an absolute value of a difference between ratios of weights of second compounds in different light-emitting layers to weights of the light-emitting layers to which the second compounds belong is in a range of 0% to 3%.