The invention discloses a novel agricultural machine fertilizer box. The novel agricultural machine fertilizer box comprises a fertilizer box body, supporting rods are arranged at two sides of the fertilizer box body, grooves are arranged in two sides of the fertilizer box body, the tops and the bottoms of the grooves are fixedly connected with first slide rails, the inner walls of the two first slide rails are in sliding connection with first slide blocks, clamping blocks are fixedly connected between the two first slide blocks, and one sides, far from the supporting rods, of the clamping blocks, are fixedly connected with first springs. The mutual cooperation of the supporting rods, the grooves, the first slide rails, spacing blocks, the first slide blocks, the clamping blocks, chutes, clamping grooves, second slide rails, second slide blocks, pushing rods, bearing rods, spacing plates, connecting blocks, handles, the first springs and second springs solves the problem of inconvenient dismounting in the dismounting process, so a large amount of manpower of a dismounting person is saved, thereby the box can be conveniently used by a user.