This paper studies the network performance parameters with different non-line-of-sight (NLOS) communication modes.According to the different transceiver elevations, the UV communication network connectivity probabilities with the different modul ation methods and the path loss models are considered.The network performance parameters with different transcei ver elevations are simulated in a wireless UV NLOS 1-connected network with uniformly distributed 500nodes.The n ode density,communication coverage range,data rate and transmission power with on-off keying (OOK) and pu lse position modulation (PPM) are analyzed. In the 1-connected UV network, the simulation results show that the network performance parameters with PPM are better than those with OOK.The network performance parameters of directional transmitting-vertical receiving is better than those of vertical transmitting-vertical receiving in the same modulation mode.When the transce iver elevation angles of connected network are larger than 40° with directional transmitting-directional receiv ing,the changes of network connectivity performance parameters are not obvious.In addition,the network has optimum perfo rmance parameters with small transceiver elevation angles.