The invention discloses a diamond wire saw and a rapid production method thereof. The surfaces of diamond grits are respectively coated with a nickel layer by chemical plating, the nickel layers are fixed on a copper-plated piano wire substrate pre-plated with a nickel layer through electroplating, and then the nickel layers are thickened, so that the diamond grits are solidified more firmly. The rapid production method of the diamond wire saw comprises the following steps of: 1, removing greases and oxides on the surfaces of diamond grits, and carrying out sensitization, activation and chemical nickel plating on the diamond grits; 2, removing greases and oxides on the surface of a metal substrate, and pre-plating nickel layers as buffer layers; and 3, carrying out composite electroplating, thickened electroplating and heat treatment on the diamond wire saw. According to the invention, diamond grits are subjected to chemical nickel plating to achieve an effect of electric conduction, so that the diamond grits carry out sequential movement under the action of an electric field, and chemical consolidation is realized; and in addition, intense agitation is introduced in an electroplating process, so that high-current/density electroplating is realized, and a highly efficient and rapid method is provided for the industrial production of diamond wire saws.