This　paper　aims　to　design　a　high　precision,　low　drift　analog　integrator,　The　method　used　is　to　use　integral　resistance　to　control　the　drift　generated　by　the　integrator.　The　main　idea　is　to　use　the　best　circuit　structure　to　minimize　the　zero　drift　and　non-linear　error,　and　select　the　high-precision　components,　As　far　as　possible　to　use　a　large　integral　resistance,　The　op　amp　has　a　large　open-loop　gain　and　high　input　impedance　and　good　high　frequency　characteristics　as　much　as　possible,　high　input　impedance　frequency　integrated　circuit,　the　integral　circuit　in　the　non-inverting　input　access　adjustable　balance　resistor,　and　the　use　of　two　integrators　for　the　poor　structure.　Finally,　the　results　was　summarized　and　the　Cadence　simulation　is　carried　out.　©　2017　IEEE.