The invention discloses a multi-light emitting surface LED bulb with large illumination direction and angle ranges and good radiating effect. The bulb comprises a bulb holder (1), a radiating bulb body (2), a front end cap (3), a rear end cap (4), a first radiating substrate element(51) of an integrated LED chip, transparent surface covers (6) and a driving circuit board (7), wherein the radiatingbulb body (2) comprises at least three base planes; the base planes circle to form a section body with a central hole (21); the joint positions of the adjacent base planes are provided with outwardsconvex radiating fins (22); the driving circuit board (7) is positioned in the center hole (21) and is electrically connected with the bulb holder (1) through wire (11); each base plane is fixedly connected with the first radiating substrate element (51); the outer side of each base plane is provided with a transparent surface cover (6); the front and rear ends of the radiating bulb body (2) are fixedly connected with the front parts of the front end cap (3) and the rear end cap (4); and the rear part of the rear end cap (4) is fixedly connected with the bulb holder (1). The bulb can be applied in the field of LED illumination.