An organic electroluminescent display panel and a display apparatus are disclosed. At a first detection phase, aging of the light-emitting device in each sub-pixel is detected one by one. At a display phase, an initial grayscale value for a corresponding sub-pixel is compensated in accordance with the aging of the light-emitting device in each sub-pixel. Moreover, in the display panel the plurality of sub-pixels that belong to the same pixel group share a sense line, such that the number of the wirings in the display panel can be reduced and the number of the signal channels of the driving chip can thus be reduced, leading to a reduced area of the driving chip and a reduced manufacture cost.