A
robotic sensing device (100) and a
tactile sensor (200) thereof. The
robotic sensing device (100) includes: a
tactile sensor (200), which has a sensing unit (10) and a
capacitance measurement unit (20), wherein the sensing unit (10) comprises a first
dielectric layer (101), a second conductive layer (102), a third insulating layer (103), a fourth conductive layer (104) and a fifth insulating layer (105), the
capacitance measurement unit (20) has a positive
electrode and a negative
electrode, the positive
electrode being electrically connected to the second conductive layer (102) of the sensing unit (10) and the negative electrode being electrically connected to the fourth conductive layer (104) of the sensing unit (10), and the
capacitance measurement unit (20) measures a changed capacitance value obtained from a change in the capacitance value of the sensing unit (10) caused by a conductive object approaching, touching or pressing the sensing unit (10); and a
processing unit (30), which uses the changed capacitance value measured by the capacitance measurement unit (20) to establish a correspondence between the changed capacitance value and a sensed position on a
robot, and then knows, by means of a
machine learning training model, an actual position where the conductive object approaches, touches or presses, and a
tactile sensation.