The utility model provides an RC front-mounted amplification circuit. The RC front-mounted amplification circuit comprises a signal source Ui, a primary cascaded triode (1), a secondary cascaded amplifier (2), a bootstrapping circuit (3), a load resistor R5, a miller capacitor C2 and a cascaded negative feedback circuit (4), wherein a base electrode of the primary cascaded triode (1) is connected with a forward end of a signal source Ui, an emitting electrode of the primary cascaded triode (1) is connected with the output end of the cascaded negative feedback circuit (4), the input end of the cascaded negative feedback circuit (4) is connected to the output end of the secondary cascaded amplifier (2), a collector electrode of the primary cascaded triode (1) is respectively connected to one end of the load resistor R5 and the negative input end of the secondary cascaded amplifier (2), the other end of the load resistor R5 is grounded, the output end of the secondary cascaded amplifier (2) is a signal output end, two ends of the miller capacitor C2 are respectively connected to the negative input end and the output end of the secondary cascaded amplifier (2), and the bootstrapping circuit (3) is arranged between the forward input end of the secondary cascaded amplifier (2) and the forward end of the signal source Ui. The triode structure is used for substituting an integrated amplifier in a two-operational-amplifier amplification circuit, so that the RC front-mounted amplification circuit is simple in structure, relatively small in size and low in cost, and the stability of the RC front-mounted amplification circuit is equivalent to that of the two-operational-amplifier amplification circuit.