A catheter with a bendable leading end provided with a catheter tube (10) having a flexible leading end portion (15), a tip electrode (20) fixed to the tip of the catheter tube (10), a first operating wire (31) for bending the flexible leading end portion (15) of the catheter tube (10) in a first direction, a second operating wire (32) for bending the flexible leading end portion (15) of the catheter tube (10) in a second direction, and a coil tube (50) that is installed only around the leading end of the first operating wire (31). The catheter with a bendable leading end allows the shape of the leading end portion to be changed asymmetrically to the left and right, and, when bending the leading end portion either to the left or to the right, allows the shape of the leading end portion to be changed while keeping the tip of the leading end portion substantially straight.
