A bendable touch device adapted to be used as a stylus or a support frame, comprising: a first body comprising a long recess; a restraining member; a second body; a spring element disposed in the first body; wherein the second body is adapted to pivot to the first body via the restraining member and convertible between a straight position and a bending position relative to the first body, and the restraining member is adapted to engage between the first body and the second body; characterized by: the restraining member comprising: an engaging piece disposed at the end of the first body and comprising a T-shape end; and a rotation seat comprising a channel wherein the engaging piece is disposed in the channel and adapted to move in the channel for abutting the second body so as to retain the second body at the straight position; wherein the spring element is adapted to connect between the engaging piece and the first body; wherein the second body is adapted to pivot to the rotation seat along a first direction relative to the rotation seat, and the rotation seat is configured in the first body and rotatable along a second direction relative to the first body; wherein when the rotation seat rotates along the second direction relative to the first body and the T-shape end aligns with the long recess, the second body capable of being rotated relative to the rotation seat along the first direction, the engaging piece slidable in the channel, and the T-shape end engaging with the long recess. a first body comprising a long recess; a restraining member; a second body; a spring element disposed in the first body; wherein the second body is adapted to pivot to the first body via the restraining member and convertible between a straight position and a bending position relative to the first body, and the restraining member is adapted to engage between the first body and the second body; characterized by: the restraining member comprising: an engaging piece disposed at the end of the first body and comprising a T-shape end; and a rotation seat comprising a channel wherein the engaging piece is disposed in the channel and adapted to move in the channel for abutting the second body so as to retain the second body at the straight position; wherein the spring element is adapted to connect between the engaging piece and the first body; wherein the second body is adapted to pivot to the rotation seat along a first direction relative to the rotation seat, and the rotation seat is configured in the first body and rotatable along a second direction relative to the first body; wherein when the rotation seat rotates along the second direction relative to the first body and the T-shape end aligns with the long recess, the second body capable of being rotated relative to the rotation seat along the first direction, the engaging piece slidable in the channel, and the T-shape end engaging with the long recess. the restraining member comprising: an engaging piece disposed at the end of the first body and comprising a T-shape end; and a rotation seat comprising a channel wherein the engaging piece is disposed in the channel and adapted to move in the channel for abutting the second body so as to retain the second body at the straight position; an engaging piece disposed at the end of the first body and comprising a T-shape end; and a rotation seat comprising a channel wherein the engaging piece is disposed in the channel and adapted to move in the channel for abutting the second body so as to retain the second body at the straight position; wherein the spring element is adapted to connect between the engaging piece and the first body; wherein the second body is adapted to pivot to the rotation seat along a first direction relative to the rotation seat, and the rotation seat is configured in the first body and rotatable along a second direction relative to the first body; wherein when the rotation seat rotates along the second direction relative to the first body and the T-shape end aligns with the long recess, the second body capable of being rotated relative to the rotation seat along the first direction, the engaging piece slidable in the channel, and the T-shape end engaging with the long recess.