PROBLEM TO BE SOLVED: To provide a fertilizer spreader that facilitates release of a hopper, makes it easy to inspect a spreading amount adjusting unit and a spreading unit, and is lightweight with a simple structure.SOLUTION: A fertilizer spreader 1 is mounted in a tractor and used. In the fertilizer spreader, a hopper side surface unit is held to a main frame 2 in at least three places of a first holding unit 7, a second holding unit 8 and a third holding unit 9. The first holding unit 7 includes a turning fulcrum shaft 70 provided in the horizontal direction in parallel with a tractor traveling direction, and holds a hopper 3 and is turnable. The second holding unit 8 includes an abutment unit 80 being opposed and abutted attachably and detachably to/from the main frame 2 side and the hopper 3 side, respectively. The third holding unit 9 includes fixing means 91 capable of being engaged or disengaged to/from engagement units provided at the main frame 2 side and the hopper 3 side, respectively, and preventing disengagement.
