The paper explained about the core concepts at the first place，such as the high-quality development，the modern industrial system. The work paths and measures that were taken by Longgang District in constructing the high-quality development and the modern indusrial system were summarized with the combination of the related practice and work in Longgang District. Several questions were thus proposed for the future work. Through the analysis in the paper，the conclusion can be drawn that constructing a modernized industrial system is a long-term，innovative and systematic great project，which requires the strengthend coordination among different departments. With the join efforts among different areas can the achievements be made. Longgang，as a key area of the real economy in Shenzhen，can be an important reference for the policymakers from other relevant areas.