Abstract: Aiming at students in analog circuit experiment,in academic competitions and extracurricular activities of science and technology to build analog amplifying circuit when the success rate and the efficiency is not high,this paper designs a multi configuration based on the operational amplifier amplifying circuit,the circuit is the conjunction of dozens of analog amplifier and filter circuit. This paper uses the experiment board PCB based the proposed circuit,direct welding component can finish the experiment circuit construction. No need to produce PCB additional. The circuit introduced in this paper has good practicality,so that efficiency and success rate of students in analog amplifying circuit experiment are improved obviously.