A lighting fixture is provided. The lighting fixture includes a housing, a light source assembly, a lens cover, and an anti-deformation assembly, the housing and the lens cover are connected and form a mounting space; the light source assembly is mounted in the mounting space and includes a light source panel, and a connection through-hole is provided in the light source panel; the lens cover includes a cover body and a lens unit on the cover body; and a part of the anti-deformation assembly is in the connection through-hole, and the anti-deformation assembly is connected to the lens unit to apply an action force to the lens unit to cause the lens unit to fit the light source panel.