Modern Sichuan dialect differs from Shu dialects before Ming Dynasty and Shu Yu before Tang and Wudai Dynasties due to the population transference.

• 明末清初“奉旨填川”后，四川人口构成发生了很大的变化，四川方言也不同于明以前的蜀方言和唐五代以前的蜀语。