InGaAs shortwave infrared focal plane array (FPA) has important application in space remote sensing. In this paper, a new design of readout integrated circuit (ROIC) is presented for a low-noise InGaAs FPA. In order to promote the signal-to-noise ratio, a new correlated double sampling (CDS) circuit is presented for eliminating KTC noise of integration capacitor (0.15 pF) in mode of integration while read. The circuit has been fabricated with 0.5 μm 5 V N-well CMOS process. Test results show that ROIC noise is 1.7×10-4 V and dynamic range is above 80 dB, working well after interfaced with InGaAs detectors.