The invention relates to a multi-functional 
crutch capable of automatically positioning and giving an alarm, which comprises a 
handle, a hollow post and a supporting foot and is characterized in that the multi-functional 
crutch provided herein also comprises a 
mercury switch, a circuit board, a battery, a time 
delay switch, an alarm, a display screen, a micro controller unit (MCU), a keyboard, an antenna, a 
GSM module, a GPS and an interphone, wherein the 
mercury switch, the time 
delay switch and the alarm are in serial connection in order; the MCU micro-controller respectively receives output signals of the time 
delay switch and the display screen and after being processed, the output signals are inputted to the 
GSM module; the antenna is used to receive the signals of the 
GSM module and send the signals of the 
GSM module to a set 
mobile phone or phone; the interphone can receive the signals of the 
GSM module and send the signals of the 
GSM module and produce sounds; and the GPS is used to input positioning signals to the GSM module and the positioning signals are transmitted to the set 
mobile phone or phone through the antenna. The advantages are that alarm signals for help are sent out once the 
crutch falls down with 
human body; and talkback contact with the set 
mobile phone or phone can be made, thus realizing communication between a crutch holder and a contact person; the appearance is beautiful; and the weight is light.