Mobile Ad hoc Network (MANET) are infrastructure less networks, dynamically formed by an autonomous system of mobile nodes that are connected via wireless links. The nodes are free to move randomly and organize themselves arbitrarily; thus the network’s wireless topology may change rapidly and unpredictably MANET has no centralized control for distribution of load properly so load balancing become one of the most important issues in MANET. Load Balancing is the process of improving the performance of a network through a distribution of load among different nodes. If a network is heavily loaded without any load balancing capability, it degrades the performance by causing congestion, delay and resource loss in network. In recent years, multi-path routing protocols have attained more attention in mobile ad hoc networks as compared to single path routing due to their abilities and efficiency in improving bandwidth of communication, increasing delivery reliability, responding to congestion and heavy traffic. This paper provides the complete survey on load balancing using multipath routing in MANET.