The 2009–10 Liga Bet season was the first season since the 1998–99 Liga Bet season, in which Liga Bet regained its status as the fourth tier of Israeli football, due to the closure of Liga Artzit.
Ahi Acre (champions of the North A division), Hapoel Daliyat al-Karmel (champions of the North B division), Maccabi Kabilio Jaffa (champions of the South A division) and Bnei Eilat (champions of the South B division) won the title and promotion to Liga Alef.
The clubs ranked 2nd to 5th in each division entered a promotion play-off, at the end of which, in the North section Hapoel Ramot Menashe Megido won against Hapoel Bnei Jadeidi from Liga Alef North and was promoted to Liga Alef, while in the South section, Ironi Ramla lost to Shimshon Bnei Tayibe from Liga Alef South and failed to gain promotion.
At the bottom, Hapoel Halat el-Sharif Tamra (from North A division), Hapoel Bnei Musmus/Ma'ale Iron (from North B division), Hapoel Ramat Israel (from South A division) and Hapoel Tirat Shalom (from South B division) all finished bottom and were all automatically relegated to Liga Gimel.
The clubs ranked 12th to 15th in each division entered a relegation play-off, at the end of which Maccabi Kabul (from North A division), Beitar Ihud Mashhad (from North B division), Otzma F.C. Holon (from South A division) and Maccabi Be'er Ya'akov (from South B division) dropped to Liga Gimel as well.
Hapoel Kafr Sumei and Beitar Nahariya advanced to the North A division promotion play-offs final.
Hapoel Kafr Sumei advanced to the North regional final.
Hapoel Iksal and Hapoel Ramot Menashe Megido advanced to the North B division promotion play-offs final.
Hapoel Ramot Menashe Megido advanced to the North regional final.
Hapoel Ramot Menashe Megido advanced to the promotion play-off match against Hapoel Bnei Jadeidi from Liga Alef.
Hapoel Ramot Menashe Megido promoted to Liga Alef; Hapoel Bnei Jadeidi relegated to Liga Bet.
Hapoel Azor and Hapoel Kiryat Ono advanced to the South A division promotion play-offs final.
Hapoel Azor advanced to the South regional final.
Ironi Ramla and Moadon Tzeirei Rahat advanced to the South B division promotion play-offs final.
Ironi Ramla advanced to the South Regional final.
Ironi Ramla advanced to the promotion play-off match against Shimshon Bnei Tayibe from Liga Alef.
Shimshon Bnei Tayibe remained in Liga Alef; Ironi Ramla remained in Liga Bet.
Beitar Haifa and Hapoel Nahariya remained in Liga Bet. Maccabi Kabul and Maccabi Kafr Sumei qualified for the North A division relegation play-off final.
Maccabi Kafr Sumei remained in Liga Bet. Maccabi Kabul relegated to Liga Gimel.
Hapoel Migdal HaEmek and Maccabi Barta'a remained in Liga Bet. Beitar Ihud Mashhad and Hapoel Beit She'an/Mesilot qualified for the North B division relegation play-off final.
Hapoel Beit She'an/Mesilot remained in Liga Bet. Beitar Ihud Mashhad relegated to Liga Gimel.
Beitar Petah Tikva and Hapoel Mahane Yehuda remained in Liga Bet. Hapoel F.C. Ortodoxim Jaffa and Otzma F.C. Holon qualified for the South A division relegation play-off final.
Hapoel F.C. Ortodoxim Jaffa remained in Liga Bet. Otzma F.C. Holon relegated to Liga Gimel.
Maccabi Sderot and Hapoel Rahat remained in Liga Bet. Maccabi Be'er Ya'akov and Beitar Giv'at Zeev qualified for the South B division relegation play-off final.
Beitar Giv'at Zeev remained in Liga Bet. Maccabi Be'er Ya'akov relegated to Liga Gimel.