With　the　development　of　space-air-ground　integrated　network　(SAGIN),　applications　expected　to　use　satellite　communications　increase　rapidly.　In　the　LEO　satellite　communication　system,　the　efficient　handover　strategy　becomes　an　important　research　hot　sport　due　to　the　large　number　of　dynamic　satellites.　This　paper　proposes　a　handover　decision　algorithm　for　latency-sensitive　services　of　the　Ground　Users　(GUs),　which　is　called　as　Load　Balancing　and　Carrier-to-Noise　Ratio　based　Handover(LBCNRH)　algorithm.　In　the　LBCNRH　algorithm,　both　the　load　balancing　indicator　of　LEO　satellite　Base　Stations　(LEO-BSs)　and　the　Carrier-to-Noise　Ratio　of　link　between　LEOBSs　and　GUs　are　considered　when　making　handover　decisions.　Compared　to　traditional　handover　algorithms,　the　LBCNRH　algorithm　performs　better　from　the　aspects　of　average　data　packet　latency,　load　balance　and　throughput.　However,　these　performance　gains　come　at　the　cost　of　an　increase　in　the　average　handover　times　for　each　GU.　©　2023　IEEE.