As the name suggests, Wuliangye is fermented and brewed from five kinds of grains: wheat, rice, corn, sorghum, and glutinous rice. It is unique among Chinese strong-flavor liquors. The "Yaozi Snow Qu" brewed in the private workshop of the Yao family in Yibin during the Song Dynasty, using five kinds of grains: soybeans, rice, sorghum, glutinous rice and buckwheat, is the most mature prototype of Wuliangye. In 1368 AD, the Chen family from Yibin inherited the Yao family's industry and summarized the Chen family's secret recipe, which was called "Miscellaneous Grain Wine" at the time. Later, it was renamed "Wuliangye" by Yang Huiquan, a scholar in the late Qing Dynasty. Wuliangye is now brewed by Yibin Wuliangye Group Co., Ltd. In 2013, the Wuliangye brand value was estimated by Food Industry Monthly to reach 69.2 billion yuan. Wuliangye is one of China's highest-end liquors and one of China's three most famous liquors, Mao Wujian. It is a good choice for holiday gifts.

Tianyancha data shows that Sichuan Yibin Wuliangye Group Co., Ltd. has applied for the "Qiliangye" trademark many times. Among them, in October 2017, the company applied for the "Qiliangye" trademark with the registration number 27098460. The current trademark status is shown as "Trademark Invalid"; in August 2018, the company applied for the "Qiliangye" trademark with the registration number 32802358. Liquid? trademark, the current trademark status is shown as "Rejected and under review"; in January this year, the company applied again for the "Qiliangye" trademark with registration number 43871401, and the current trademark status is shown as "Waiting for substantive review". In addition, the company also applied for a trademark named "Qiqu Qiliangye" in November 2017. The current status of the trademark is "Trademark Registered".

In an interview with a reporter from Chutian Metropolis Daily, lawyer Meng Qingen of Beijing Zhongwen (Shanghai) Law Firm believed that Wuliangye Company’s registration of the Qiliangye trademark for trademark defense purposes is in line with commercial purposes. However, when Wuliangye Company applies to register the Qiliangye trademark, it cannot infringe on others' already registered trademarks. It was on this basis that the court of second instance determined that the trademark applied for registration by Wuliangye Company was similar to someone else’s trademark, rejected Wuliangye Company’s appeal, and upheld the original judgment. If Wuliangye Company is dissatisfied with the second-instance judgment, it can also apply to the Supreme People's Court for a retrial. ?Some people believe that the "Qiliangye" trademark applied for registration by Wuliangye is similar to the "Zhongyuan Qiliang Yuye", "Zhongyuan Qiliang Fugao", and "Zhongyuan Qiliangfang" that were successfully registered before, so they reported to the Trademark Office File an objection application. Subsequently, the Trademark Office made a ruling on objection to the "Qiliangye" trademark on November 20, 2012, ruling that the disputed trademark should not be approved for registration.