According to the situation of the daily living of the older in-home and community health service, this paper investigated the wireless and portable system for the acquisition of the in-home elderly health information by the remote-medical technique. The two layer architecture of the proposed system is addressed including the physiological data collector built based on wireless sensor networks (WSNs), and remote acquisition system of community health service centers for the physiological parameters. The WSN collector with star topology is obtained by a relay routing node controls acquisition nodes by nrf24101, in which each acquisition node constructed by STC12 MCU as master model realize the functions: physiological parameter acquisition, history records inquiry and data transmission. Also, relay routing node was developed by ARM MCU as master model transmitted all data from acquisition nodes to community health center PC server via SOCKET and WIFI with advantages of the reliable communication during long time, which can provide the more useful health information in-home for remote-medical health service center. This developed system can effectively improve the quality of elderly in daily living.