PROBLEM TO BE SOLVED: To provide an inexpensive holding clip for a plant stem, etc., usable by one-touch operation in order to repetitively carry out operations to mount and remove a fixing tool and training operations many times according to the growth of the stem, good in operating efficiency and capable of surely fixing a support and the stem even at the time of a strong wind. SOLUTION: This holding clip for a plant stem, etc. is equipped with a support nipping part 1 having a bending part 4 in the central part in the longitudinal direction, respective semicircular stem nipping and fixing parts 7A and 7B installed connectedly to both sides of the support nipping part 1, pawl parts 3A and 3B provided in the connectedly installed part of the support nipping part 1 and the stem nipping and fixing parts 7A and 7B and capable of mutually overlapping and nipping the support when bending the support nipping part 1 from a bending part 4 into a circular form and a locking part installed connectedly to the tips of the stem nipping and fixing parts 7A and 7B and comprising a locking pawl 13 and a locking hole 11 for locking a bent state when mutually bent.