Downstreaming has develop be one of instrument main policy Indonesian industry for change structure economy from dependence on exports commodities raw going to production worth add, strengthen chain supply domestic and increase Power competition industry. Policy the gain new momentum along increasing global demand for strategic minerals for transition energy, especially nickel that becomes material important for stainless steel industry and ecosystem vehicle electricity. Research This aim analyze in a way systematic development literature about policy downstreaming and its implications towards development strategy Power competition Indonesian industry. Research use Systematic Literature Review (SLR) approach with examine publication scientific 2020–2025 period, report institution international, documents government as well as statistical data official. Analysis done through synthesis thematic to four dimensions main, namely: (1) policy industry and transformation structural, (2) improvement mark add and integrate chain value, (3) investment, technology, and capabilities industry, and (4) sustainability and governance downstreaming. Study results show that downstreaming has give contribution to improvement investment, development capacity mineral processing, changes composition exports, and formation cluster industry new. Indonesia is also increasingly own position strategic in chain supply global nickel; Indonesia's share in production nickel world mining increases from around 34% in 2020 to 52% in 2023, while share production nickel processed increase from 23% to 37% in the same period. However, the success the Not yet fully identical with improvement Power competition industry in a way comprehensive. Literature show Still there is problem in the form of dependence technology and foreign capital, limitations relatedness industry domestic, concentration downstreaming of commodities certain, midstream trap risk, intensity carbon, the problem environment, as well as uncertainty regulation. With Thus, the policy downstreaming need shift from resource-based downstreaming orientation towards capability-based industrial upgrading, through strengthening innovation, technology transfer, human resource development, diversification industry, MSME integration, decarbonization, and governance cross sector. Research This confirm that Power competition Indonesian industry in the long term long No Enough built through restrictions export material raw, but through ability create technology, products, competencies, and ecosystems industry domestic capable compete in chain global values.