Municipal afforesting isolation fence

The utility model relates to a municipal afforesting isolation fence which comprises a plurality of isolation fence units which are jointed mutually in the stretching direction of a road. Each isolation fence unit comprises two fixing bases, planting grooves fixed to the position above the two fixing bases, plants planted in the planting grooves, and a plurality of cross fences connected between the two fixing bases and distributed in the vertical direction at intervals. Each isolation fence unit is further provided with an infrared distance measurement sensor, a prompting component and a control circuit. The infrared distance measurement sensor and the prompting component are arranged on the cross fences respectively. The infrared distance measurement sensor and the prompting component are electrically connected with the control circuit respectively. The control circuit controls the prompting component to send out a prompting signal according to the distance between pedestrians or vehicles and the isolation fence units measured by the infrared distance measurement sensor. A joint block is arranged on one of the two fixing bases, and a joint groove is formed in the other fixing base.