An LED bulb comprises a lamp base and a lampshade; a lamp holder is disposed in the lampshade; an exhaust pipe is disposed in the lamp holder; the top of the lamp holder is provided with a lamp body; the lamp body comprises a core column fixed to the lamp holder; the periphery of the core column is uniformly provided with a plurality of LED filaments; an LED filament pin wire is penetrated in each LED filament; each LED filament pin wire at an upper end of the LED filament is connected with a guide wire disposed at the top of the core column; each LED filament pin wire at a lower end of the LED filament passes through the lamp holder and is connected with a capacitance-resistance driving power supply disposed in the lamp base under the lamp holder; the capacitance-resistance driving power supply is connected with a contact head disposed at the bottom of the lamp base; and argon is filled in the lampshade. According to the LED bulb, good luminous flux is ensured through the uniformly distributed LED filaments; the guide wire is disposed, a parallel spot welding method is used, and the condition that other filaments are not bright due to the fact that one filament is damaged is prevented; the LED filaments are inclinedly arranged, convection speed is increased, and heat condensation is prevented; the capacitance-resistance driving power supply is arranged, heat production is little, and service lifetime is prolonged; and the argon is filled to effectively protect the filaments, and oxidation is avoided.