LEACH based routing protocol is a mature technology in the environment of tiny and static wireless sensor network. In most study of mobile WSN, the improved LEACH protocol only considered the mobility of member nodes. TLEACH protocol proposed in this paper implemented the establishment and maintenance of hierarchical topology in an environment that all nodes are mobile. The protocol using tree routing mechanism, power control technique and multi-hop transmit scheme to reduce power consumption and improve delivery rate. It can be applied to large-scale, dynamical and uneven distributed mobile WSNs.