The improvement in H-mode confinement in the JFT-2M tokamak shows the difference between CO- and counter-neutral beam (CTR-NB) heating. The improvement in the CO is larger than that in the CO + CTR or CTR H-mode. The reason for is considered not to be the effect of the sheared toroidal rotation, , in the core. at the last closed flux surface shows a finite value (about 20-40 and the direction is dependent on the beam injection angle) in a divertor H-mode. The finite toroidal rotation at the edge plays a role in the observed . Since the radial electric field formed by the poloidal rotation is negative, the electric field shear at the edge is increased by the positive electric field of . In contrast, the electric field from is negative, which reduces the electric field shear. Therefore, the difference in the improvement between the CO and CO + CTR H-mode, which comes from the difference in the pedestal height, may be related to the electric field shear at the edge.