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This utility model discloses a leaf collection vehicle, relating to the field of urban sanitation technology. The vehicle includes a vehicle body equipped with a negative pressure trash can, a leaf collection device, a leaf collection device fixing mechanism, and a sweeping device. The leaf collection device includes a suction port, which comprises a housing and a suction port insert. The housing has a suction channel extending vertically upwards from the bottom of the housing. The bottom of the suction channel has a bottom opening, and a suction port is located on the side of the suction channel near the bottom. The bottom opening connects to and is through the suction port. A suction port insert is located at the suction port, and the insert can move towards the suction port to cover it and move away from it to expose it. The suction port can change size using its shape and structure to prevent clogging. Using this leaf collection vehicle greatly improves the efficiency of sweeping up lightly littered objects such as leaves and branches.