Legend has it that when King Wen of Zhou was young, his parents died early and he relied on his brother and sister-in-law to raise him. Once, Zhou Wenwang led his army on an expedition and encountered heavy rain, wind and cold into the bone, served a hundred drugs did not see any improvement, a few days bedridden.

When his sister-in-law learned of this, she personally rolled out a bowl of hot noodles for King Wen, who ate the noodles in a sweaty and refreshed manner, and later named the dish "Sister-in-law Noodles" in honor of his sister-in-law. Therefore, the name of the noodles is also called "Sister-in-law noodles" or "Whistle noodles", and "Whistle noodles" may be due to the harmonic transformation.