A floor lamp includes a lamp base, a lamp holder module, and a support rod assembly including a bottom support rod having a bottom mounting end portion connected to the lamp base, a connecting end portion, and a through hole; a top support rod having a top mounting end portion connected to the lamp holder module, a connecting end portion, and a through hole; and at least one coupling member having two coupling holes respectively formed in two opposite coupling end portions thereof. Two fixing members are inserted fixedly and respectively into an aligned one of the through hole in the bottom support rod and one of the coupling holes and another aligned one of the through hole in the top support rod and the other coupling hole.