The invention belongs to the field of indirect-cooled glass-glaze-film resistors. The invention relates to a double-surface-installed double-inner-waterway water-cooled resistor, which mainly comprises a flat-top type indirect-cooled glass-glaze-film resistor, a double-surface-installed double-inner-waterway heat-radiating plate and a common electrode. A beryllium-oxide and copper-plate structure is adopted by the resistor core of the flat-top type indirect-cooled glass-glaze-film resistor. The double-surface-installed double-inner-waterway heat-radiating plate is adopted. The flat-top type indirect-cooled glass-glaze-film resistor is installed at no intervals on the two cooling planes of the heat-radiating plate to form a single-plate module of the double-surface-installed double-inner-waterway water-cooled resistor. Cooling water flows in from the water inlet of the single-plate module, flows through two inner waterways in opposite water-flowing directions and flows out of the water outlet of the heat-radiating plate after heat is absorbed, so that the highest temperature of the resistors and the temperature difference among all the resistors are all ensured to be decreased within a safe value under the condition that the resistors are installed at high density. N single-plate modules are stacked in parallel into a whole to form the double-surface-installed double-inner-waterway water-cooled resistor.