The invention provides a face recognition 
toilet paper 
robot. The 
robot comprises at least one face recognition module (1), a standing recognition mark (2), at least one text language prompt module (3), at least one code scanning paid area (4), at least one paper outlet (5) and a 
toilet paper replacement mechanism; the face recognition modules (1) are used for identifying the facial features of people taking free 
toilet paper and storing the facial features in a specific 
database, and then people with the same facial features cannot take the free 
toilet paper any more within the 
specific time; the standing recognition mark (2) is stuck to the portion, a certain distance away from the wall surface, of the front end, and therefore a clear face recognition area is defined; the text language prompt modules (3) prompt whether face recognition succeeds or not and whether a section of 
toilet paper with the 
fixed length is provided or not; on the condition that the 
toilet paper is still needed within the 
specific time after the free toilet paper is taken, the paid toilet paper of the certain length is taken by adopting multiple 
payment methods; after a text or voice prompt module prompts that paper is discharged, the toilet paper of a specified length is discharged from the paper outlets (5); the toilet paper replacement mechanism is used for replacing the toilet paper according to the use condition of the toilet paper. The invention further provides a use method of the face recognition toilet paper 
robot.