This invention relates to a plate (1) for synthesis of a bone fracture, a first side (3) being defined in said plate (1), said plate (1) comprising, on said first side (3), at least two projecting portions (6) shaped for resting, in use, on a fractured bone (11), between said at least two projecting portions (6) at least one cavity (7) being formed for, in use, receiving at least one portion of a bone fracture reduction instrument (10), in such a way that said plate (1) is applicable, in use, on said fractured bone (11) while said instrument (10) is in the reduction position. This invention also relates to a kit comprising that plate (1) and at least one bone fracture reduction clamp (10) comprising at least one removable gripping portion (14), for gripping a fractured bone (11).