The invention provides a circuit provided with large resistors and large capacitors simultaneously and a design method. According to the circuit provided with the large resistors and the large capacitors simultaneously, technological minimum poly width is adopted in a poly resistor array to realize a high resistance value, an MIM capacitor array is arranged on the poly resistor array, and then the area is saved, wherein the poly resistor array is composed of multiple poly resistor units which are in the same shape and are arranged in parallel, so that contact ports at the two ends of each poly resistor unit are arranged regularly; the MIM capacitor array is composed of N MIM capacitor units which are arranged regularly; and the length of the poly resistor units is larger than the total length of the MIM capacitor array, so that the contact ports at the two sides of each poly resistor unit extend out of the two sides of the MIM capacitor array to facilitate connection between the resistors.