The invention discloses an achieving method for a fixed wireless telephone with two numbers, which comprises a third generation (3G) module unit, a liquid crystal display (LCD) unit, a handle unit, a receiver speaker unit, a keyboard unit, an external exchange interface unit, a frequency shift keying decoding unit, a universal serial bus (USB) change-over switch unit, a wireless fidelity (WI-FI) unit, an Ethernet unit, a power supply management unit, a lithium battery and the like. The achieving method for the fixed wireless telephone with two numbers accesses a third generation (3G) network and a public switched telephone network (PSTN) simultaneously, has basic voice call functions of the 3G network and the PSTN network, and further provides 3G high-speed net surfing, message sending and receiving and other functions for a user. The achieving method for the fixed wireless telephone with two numbers can enable the fixed telephone of the user and a 3G terminal to unit as one, not only facilitates use, reduces call charges, but also saves device purchasing cost, and saves electrical energy simultaneously.