The construction of urban ecological security pattern is an important approach to ensure national and regional ecological security and achieve sustainable urban development. The identification of ecological sources and the construction of spatial resistance surface have been the technical difficulties in the study of ecological security pattern. Considering its own functions and structural importance in the landscape, an integrated identification index system is established on the basis of natural, artificial, and natural-artificial interactive attributes of the ecological patch. Thus, the spatial resistance surface is also identified from the aspects of its composite attribute characteristics. And the minimum cumulative resistance model is used to construct an integrated ecological security pattern to determine the spatial distribution of key urban ecological corridors. Hangzhou, which is faced with pressure of both ecological conservation and economic development, is taken as an example to test the function and effectiveness of our method. The results show that the landscape connectivity has great influence on the formation of ecological patches. The urban ecological security pattern shows a downward trend around the ecological source to the surrounding radiation. The overall trend is low in the east and high in the west. According to the spatial distribution of the ecological source areas and key corridors, the targeted pattern optimization strategy has important reference significance for urban ecological network construction. The results can provide with effective guidance for the related urban spatial planning.