Since entering Yuchai in 1994,，Xu Yanni has been fighting in the production line.。She is known as“Desperate Sanniang”Known as，In order not to lose the struggle and drive of male workers at all.，From an ordinary female worker at the grass-roots level, she has grown all the way to a master of skills.，Become an outstanding representative of industrial workers in the new era。According to statistics，Xu Yanni has completed 19 key technical projects.，Boost Yuchai Guoliu、T4 Smooth transformation，Create benefits for the company over ten million yuan。

Xu Yanni is not only good at innovation，Strive for first-class，It also gives full play to the vanguard and exemplary role.。As an innovation studio for female workers of Yuchai Group、Xu Yanni is the leader of Labor Model Innovation Studio.，Xu Yanni has trained more than 200 talents of all kinds.，Three people won the championship of Guangxi Workers'Vocational Skills Competition，Five achievements of the team have been awarded at or above the provincial level.，Obtained 70 invention patents。

In addition，Xu Yanni was also elected to the 13th National People's Congress.，And was awarded the National May Day Labor Medal.、Excellent Communist Party members in Guangxi、Model workers in Guangxi、Honors such as Guangxi Diligent and Honest Advanced Individual。