The analysis of Shandong development power has important practical significance for promoting the country's sustained, rapid and coordinated economic development. The article adopts longitudinal comparative analysis and reaches the following conclusions: Shandong economic development power has been enhanced year by year, but there are still some deficiencies, and need improving the industrial structure to further enhance the economic development. As a coastal economic province, Shandong occupies an important position in the national development. Its GDP increased by one percentage point each, will be able to contribute to the national GDP growth of 0.1 percentage points. If one percentage point reduced, it will pull down the national GDP 0.1 percentage points. The analysis of Shandong development power has important practical significance for promoting the country's sustained, rapid and coordinated economic development and building a socialistic harmonious society. This paper rejects traditional research and analysis of the economic development competitiveness, and it introduces “development power” which is more consistent with the concept of scientific development, and leads a new way of thinking for economic development research. Regional economic development is based on the required elements of the development have a full flow in space, thus activate the regional economic vitality, diversify the economy development, and eventually form a common development pattern.