A digital camera module (100) and a lens (20) used therein, the digital camera module includes a holder (10), an image pickup module (30) and a lens (20). The holder has a window (12) defined on a sidewall, the window is configured for receiving light. The image pickup module includes a base (31) and a chip (33) attached to the base, the base is mounted to the holder to cooperatively form a receiving space therebetween. The prism lens is received in the receiving space and formed from a first transmitting surface (22) configured for transmitting light passing through the window, a second reflecting surface (24) configured for reflecting light transmitted from the first surface, and a third transmitting surface (26) configured for transmitting the reflected light to form an image on the chip.