The wearable human power assisting and amplifying device for upper limbs

An auxiliary muscular strength amplifying device suitable for an upper body of a human is provided to reinforce muscular strength of an arm by detecting arm action using a muscle stiffness sensor. An auxiliary muscular strength amplifying device(200) suitable for an upper body of a human comprises a body module(210), a pair of arm modules(220), a detection unit, and a control module. The body module distributes load when a user wears the body module. The arm modules are provided at both sides of the body module so that the user puts both arms into the arm modules. The body module includes a shoulder joint part(211), a shoulder support part(212), a back support part(213), a waist support part(214), and a pelvic support part(215). The arm module includes a plurality of joint shafts and a driving unit for rotating the joint shafts. The detection unit is installed in the body module or the arm module to detect the action of the user.