Geiger　mode　avalanche　photodiode　arrays(G-APDs)　is　emerging　high-sensitivity　laser　signal　detectors　in　recent　years,　which　can　be　applied　to　photon-level　lidar　detection,　guidance　and　imaging.　Because　of　its　photon-level　detection　sensitivity,　it　is　greatly　affected　by　the　strong　skylight　background　and　its　own　dark　count.　In　order　to　reduce　the　noise　interference　such　as　dark　count　and　strong　skylight　background,　based　on　the　detection　techniques　such　as　spectral　filtering,　spatial　filtering　and　temporal　filtering,　a　noise　filtering　technique　based　on　neighboring　pixel　threshold　detection　is　proposed.　Through　modeling　analysis　and　related　experiments,　it　is　verified　that　the　noise　filtering　technique　based　on　neighboring　pixel　threshold　detection　can　effectively　improve　the　detection　probability　and　ranging　accuracy　of　laser　single-pulse　echo　signals.