Forest is one of the most valuable and indispensible natural resource. The forest fire is one of the natural disasters that destroy the forest not only in India but countries like Australia, USA etc which is called as bush fire, wild fire respectively. Now in terms of deploying Wireless Sensor Networks for forest fire monitoring and detection, there is a need to investigate appropriate routing protocol which fits well. There are lots of routing protocols available in Wireless Sensor Networks which are classified as Flat, Data Centric, Hierarchical, and Location based and so on. But in terms of forest fire where these wireless sensors are dependent on battery power and not any other power sources. There is a need to look into energy efficiency of such routing protocol being deployed for forest fire towards continuous monitoring and analysis. So accordingly we have compared DSDV, LEACH and APTEEN routing protocols for forest fire monitoring. Further, the APTEEN routing protocol under forest fire scenario for high, moderate and less fire prone zones been simulated using ns-2 and result compared in terms of packet delivery and zone wise energy consumption.