The invention discloses an electric heating assembly and an electric heating device provided with the same. The electric heating assembly comprises at least one heating element and turbulence elements. Each heating element comprises a heating substrate, a heating layer and an electrode layer. The heating layers and the electrode layers are located on the outer walls of the heating substrates. The turbulence elements are located in inner cavities of the heating elements and comprise solid parts. A heating channel comprises spaces between the turbulence elements and the heating elements. The peripheral sides of the solid parts are a part of the heating channel.