The invention provides a radio frequency front-end circuit and a mobile terminal. The circuit comprises a first double-pole double-throw switch; a first signal receiving circuit which is connected with one of the first antenna and the second antenna through a first double-pole double-throw switch and receives signals through the connected antenna; a second double-pole double-throw switch; a secondsignal receiving circuit which is connected with one of the third antenna and the fourth antenna through a second double-pole double-throw switch and receives signals through the connected antenna; athird double-pole double-throw switch which is respectively connected with the first double-pole double-throw switch and the second double-pole double-throw switch; a first radio frequency circuit which is connected with the third double-pole double-throw switch and comprises a signal receiving mode or a signal transmitting mode; And a second radio frequency circuit which is connected with the third double-pole double-throw switch and comprises a signal receiving mode or a signal transmitting mode. The circuit is simple in design, radio frequency layout wiring can be shortened on the basis that signal transmitting and/or receiving are/is achieved, and therefore path difference loss is reduced.