The invention discloses a sprinkler device for watering in a vegetable planting system. The sprinkler device comprises a vegetation sprinkler assembly, a sprinkler water source assembly and a sunshadeand rainproof assembly. The sprinkler water source assembly comprises a plurality rain and dew collecting pieces and a rain and dew collecting groove. The sunshade and rainproof assembly comprises asunshade and rainproof plate and an umbrella placement plate. The umbrella placement plate is fixed to a rain and dew collecting plate. The sunshade and rainproof plate is fixed to a rain and dew collecting frame. The vegetation sprinkler assembly comprises a sprinkler water storage piece, a booster pump, a sprinkler water inlet pipe, a sprinkler water outlet pipe and a plurality of sprinkler heads. According to the sprinkler for watering in the vegetable planting system, by arranging the rain and dew collecting frame and the rain and dew collecting plate, rain and dew can be collected and then conveyed into the sprinkler water storage piece through the rain and dew collecting groove, various vegetables are watered through the sprinkler heads, natural resources are collected and utilized,water resources are saved, and the environment is protected. By arranging the sunshade and rainproof plate and the umbrella placement plate, the sunshade and rainproof effects can be achieved.