Conveniently-stored underarm crutch

An underarm crutch, comprising:

• an underarm support (1), two upper limb tubes (2) parallel to each other, a handle (3), a connecting base (4) and a foot tube (5);
• wherein the underarm support (1) is disposed above upper ends of the two upper limb tubes (2), the handle (3) is disposed between the two upper limb tubes (2), the connecting base (4) is provided with two inserting holes (401), the two upper limb tubes (2) are respectively inserted into the two inserting holes (401), the connecting base (4) is provided with elastic pieces (6) configured to lock the two upper limb tubes (2) in the inserting holes (401), an end of each of the elastic pieces (6) is connected to a corresponding one of the two upper limb tubes (2), another end of each of the elastic pieces (6) is connected to the connecting base (4), and the foot tube (5) is connected to the connecting base (4).