Disclosed are a rocker device and a handle controller. The rocker device includes a mounting seat assembly, an electric control board, an upper shell and a bottom shell. The mounting seat assembly is provided with a first groove and an arc-shaped groove for mounting the rocker arm assembly. The electric control board is disposed in the first groove, and the upper shell covers a top area of the mounting seat assembly. The upper shell fixes two ends of the rocker arm assembly in the arc-shaped groove and confines the electric control board to the first groove. A first connecting portion is also provided on an outer periphery of the upper shell. The mounting seat assembly is disposed in the bottom shell, and the bottom shell is clamped with the first connecting portion.