SiPMs (silicon photomultipliers) are single-photon-sensitive devices based on single-photon avalanche diodes (SPADs) implemented on common silicon substrate, it generates pulses after absorbing photons. Major advantages of the SiPMs include wide detection range, high gain, high sensitivity (down to a single photon) , low bias voltage, and no magnetic field interference. These characteristics make it a good choice for light detection applications, for example time of flight positron emission tomography (TOF-PET), distance measurements in LIDAR applications, quantum-cryptography and related applications. In SiPMs soc testing, ATE is usually required to provide illuminator, force high positive or negative voltage as device bias voltage, make current measurement and count the device output pulses at high frequencies. This document introduces the SiPMs test solution on Teradyne IP750 platform. APMU is a power supply instrument of IP750, the test solution takes advantage of APMU’s high voltage ranges as well as greater current capabilities. HSD800 frequency counter is used for counting the pulses, how to setup it to co-work with digital channels of different timing mode is introduced.