Wireless sensor network is nowadays very popular important in the field of research because the world is now switching faster from wired communication to the wireless communication. In our research work, we have to compare different protocols TEEN, PEGASIS, ECHREP LEACH. It is used in environmental monitoring, habitat monitoring, battlefield etc. WSN is made up of tiny sensor nodes which sense the data and communicate to the base station via other nodes.WSN networks are data-centric rather than node centric. So, main issues in WSN networks are energy consumption of network, the lifetime of a network, delay, latency, quality of service etc.WSN has defined many routing protocols for the network. The main challenge in WSN is to design a routing protocol which gives the maximum energy efficient routing because nodes in a sensor network are equipped with the battery. So, as time passes the battery of nodes will decrease so in turn network lifetime will decrease. There are many routing protocols which are classified as their working and their application to different conditions. This paper describes brief information about routing protocols. The main focus of this paper is to give the comparison of different hierarchical routing protocols. In this Dissertation, we were comparing four routing protocol LEACH, PEGASIS, TEEN and Proposed ECHERP. So we conclude that according to overall performance in hierarchical network ECHERP performance better compare to other routing protocol in WSN.