The present invention relates to a tongue module for a robot which is installed in an android face robot formed to have a similar external appearance to a human face and to express feelings. The tongue module includes a tongue body made of composite silicon material and formed to have smooth texturing; a front and rear driving unit configured to move the tongue body in front and rear directions by using a crank arm and a first servo motor; an up and down driving unit configured to bend the tongue body in up and down directions by using wires and a second servo motor; and a linear rail assembly configured to move the tongue body in a straight line.