A display panel and a manufacturing method thereof are provided. The display panel has a display side and a non-display side, and includes a display region (AA) and a bending region (B) located on a side edge of the display region (AA), the bending region (B) includes at least one first wire (101), and the bending region (B) is capable of being operatively bent from the display side to the non-display side, the display region (AA) includes a second wire (102), a first end (1011) of the first wire (101) is electrically connected to the second wire (102), and a second end (1012) of the first wire (101) is bent to the non-display side through the bending region (B). The bending region (B) further includes a detection wire (103) arranged side by side with the first wire (101), at least a part of the detection wire (103) is bent along with the bending region (B), and the detection wire (103) includes a first end (1031) and a second end (1032), which are used to connect an external detection circuit; and the detection wire (103) and the bending region (B) are only located on a side of the side edge away from the display region (AA). The detection wire (103) is detected by the external detection circuit, and a state of the first wire (101) arranged side by side with the detection wire (103) in the bending region (B) can be determined.