The invention discloses a slow-release drip irrigation pipe and a vertical greening system with the same, the slow-release drip irrigation pipe comprises a hollow water pipe body, a water divider is fixed to each of two ends of the water pipe body, each water divider includes an inflow passage, an outflow passage and a water retaining portion, each water retaining portion hermetically covers an end surface of the water pipe body, each water retaining portion and the water pipe body form a water storage cavity, with the corresponding inflow passage and the corresponding outflow passage passing through the water retaining portion and communicating with the water storage cavity, each inflow passage is arranged above the corresponding outflow passage, the water pipe body and the water dividers are formed in a whole. The vertical greening system comprises a bearing plate fixed to a wall, a planter for planting plants and a drip irrigation device for watering the planter. The flow-release drip irrigation pipe is simple and reasonable and is convenient to mount and use, drip irrigation is performed by using a water guide cotton strip so that it is possible to prevent water supply stoppage due to pipeline blockage, and the flow-release drip irrigation pipe has the advantages of low cost, small size, light weight and good convenience of popularization.