A modular basketball backboard with a rim contains: a backboard, a rim, and three fixing ropes. The backboard includes a first front face and a first back face, and the first back face has a longitudinal adjusting rope secured thereon. The rim is mounted on the first front face of the backboard. Two ends of two of the three fixing ropes are inserted and tied on two sides of the backboard, and one end of another of the three fixing ropes is tied on the longitudinal adjusting rope of the first back face of the backboard. The backboard and the rim are fixed and suspended by tying the three fixing ropes for shooting a basketball into the rim. Thereby, the backboard and the rim are fixed, removed, and height adjustable easily. Preferably, the modular basketball backboard with the rim cooperates with a bouncer to enhance convenience and entertainment.