A weight pendulum for correcting the branch of a fruit tree is provided to convert the nutrition generation branch into the fruit production branch selectively, thereby increasing the production of fruits. A weight pendulum(10) for correcting the branch of a fruit tree comprises a weight pendulum which has a self-weight or an empty inside filled with soil or sand to allow a branch(100) to be bent toward the ground; a connection string(14) which is connected by the ring formed at the upper part of the weight pendulum and is connected with branches; and at least one sunlight reflecting mirror(20) which is connected at the upper part of the weight pendulum by a slit to increase the weight of the weight pendulum and to promote the growth of fruits(200) by reflecting sunlight to the lower part of the fruits hung on the branch, wherein the circumference of the sunlight reflecting mirror is greater than that of the upper part of the weight pendulum.
