The “First-phase Qualifications Training for Approvers of Pressure Pipeline Design in Light Industry in 2015" jointly co-hosted by the China Investigation and Design Association of Light Industry， the technical quality department and human resources department of Haisum was held in Shanghai on April 21-24. Nearly 90 trainees from the petrochemical and light industry system across the country took part in this training, near 40 reviewers of Haisum took part in it, and in addition, some professionals on the process and power attended the meeting as the observers. Four senior chief engineers, i.e. Ma Yunjie, Liu Tong and Li Furong from Haisum and Chen Piyu from Shanghai Bayer Company, acted as the instructors of the training. The training content covers the pressure pipeline design, utility piping design, power pipeline design and stress calculation, pipeline design, pipeline material design, etc.. After the training lasting for 3 days, it not only completed the renewal of qualification certificate of the approvers of the pressure pipeline design for the date of termination, but also consolidated and updated the knowledge hierarchy of all approvers of the pressure pipeline design.