The invention discloses an urban road pavement rainwater collection and utilization system and relates to roads and green belts adjacent to the roads. The urban road pavement rainwater collection and utilization system at least comprises a water collection system, a blind ditch irrigation network connected with the water collection system and a drainage system communicated with the water collection system. The water collection system comprises water grates arranged along the side edges of a road and water collection wells located below the water grates, the drainage system comprises rainwater wells and municipal rainwater pipes connected with the rainwater wells, an overflow sill partition wall is arranged between the rainwater wells and the water collection wells, an overflow limit is formed at the top of the overflow sill partition wall, the blind ditch irrigation network is located in a green belt, and the latticed blind ditch irrigation network is formed by staggering of a plurality of blind ditches in a longitudinal and transverse mode so as to irrigate the covered green belt evenly. The urban road pavement rainwater collection and utilization system has the advantages of capable of utilizing rainwater efficiently, having functions of rainwater filtering, greening and irrigation and greening and water storage, and being suitable for various roads with longitudinal slopes and cross sections, convenient to construct and reasonable in construction cost.