According to the complex production performance and great productivity difference of individual well in the tight oil reservoir，the flow mechanism under coupling of multiple media was researched based on the reservoir characteristic of the presence of different types of pore and natural fracture. The storage-percolation modes of the tight oil reservoir were divided into four types based on various fracture types，scales and development degree combined with static data of seismic interpretation，well logging analysis and core slice，which are multi-scale fracture-pore type，macro-fracture-pore type，micro-fracture-pore type and pore type. Different storage-percolation modes have various pore-fracture coupling modes with various flow characteristics and productivity characteristics. By means of reservoir engineering and numerical simulation，the performance characteristics under different storage-percolation modes were analyzed based on the static and dynamic data. The comparison of the results shows that the well productivity would be the highest when large and micro fractures with different scales form the complex fracture network. Suitable reservoir reformation mode should be adopted according to various storage-percolation modes. Natural fractures and artificial fractures may form fracture network and the matrix may be connected effectively. The producing degree of the matrix and the recovery degree of the tight oil reservoir may be increased when the initial production and production scale were increased.