Modular grill with integrated brazier-oven, wherein it is constituted by: A) a base structure with rectangular or square base, constituted by at least four uprights arranged at the corners of the base rectangle and at least four crosspieces adapted to horizontally connect said uprights; at least the two rear uprights being provided, at the lower end, with at least one pair of wheels and at least the two front uprights being provided, at the upper end, with at least one pair of handles suitable to allow the partial lifting of the front portion of the grill; the upper portion of said base structure being suitable to act as a cooktop; said crosspieces being suitable to be reversibly engaged with at least one lower support surface, said uprights being possibly provided with at least one pair of tool-holder brackets (400-400'); B) a cooktop constituted by a horizontal flat surface on which the user arranges the embers ready for cooking; said surface being constituted by a plurality of metal profiles with shape and size such to stably retain, in a reversible manner, a plurality of rectangular bricks made of any refractory material; said cooktop also being constituted by at least two raised lateral surfaces suitable to be reversibly engaged with at least one movable grill, provided with at least one pair of handles (500-500'), at a distance from the cooktop comprised between 5 cm and 30 cm, preferably 10 cm; C) a brazier-oven element, constituted by a substantially cube-shaped or parallelepiped-shaped structure arranged at the rear portion of the cooktop of said grill; said brazier-oven being provided with lateral surfaces constituted by a plurality of metal profiles suitable to be reversibly engaged with a plurality of bricks made of any refractory material, a lower surface constituted by a fixed grill and an upper surface reversibly closable by means of a common lid, preferably made of ceramic glass, provided with a handle; said brazier-oven being suitable to contain at least one reversibly extractable internal tray, it too provided with a handle; said brazier-oven being characterised in that it is reversibly connected to said cooktop of said base structure. A) a base structure with rectangular or square base, constituted by at least four uprights arranged at the corners of the base rectangle and at least four crosspieces adapted to horizontally connect said uprights; at least the two rear uprights being provided, at the lower end, with at least one pair of wheels and at least the two front uprights being provided, at the upper end, with at least one pair of handles suitable to allow the partial lifting of the front portion of the grill; the upper portion of said base structure being suitable to act as a cooktop; said crosspieces being suitable to be reversibly engaged with at least one lower support surface, said uprights being possibly provided with at least one pair of tool-holder brackets (400-400'); B) a cooktop constituted by a horizontal flat surface on which the user arranges the embers ready for cooking; said surface being constituted by a plurality of metal profiles with shape and size such to stably retain, in a reversible manner, a plurality of rectangular bricks made of any refractory material; said cooktop also being constituted by at least two raised lateral surfaces suitable to be reversibly engaged with at least one movable grill, provided with at least one pair of handles (500-500'), at a distance from the cooktop comprised between 5 cm and 30 cm, preferably 10 cm; C) a brazier-oven element, constituted by a substantially cube-shaped or parallelepiped-shaped structure arranged at the rear portion of the cooktop of said grill; said brazier-oven being provided with lateral surfaces constituted by a plurality of metal profiles suitable to be reversibly engaged with a plurality of bricks made of any refractory material, a lower surface constituted by a fixed grill and an upper surface reversibly closable by means of a common lid, preferably made of ceramic glass, provided with a handle; said brazier-oven being suitable to contain at least one reversibly extractable internal tray, it too provided with a handle; said brazier-oven being characterised in that it is reversibly connected to said cooktop of said base structure.