A climbing hold and a rock climbing system for use in rock climbing are disclosed. The climbing hold includes a climbing hold body which is provided with a conductive film and a circuit board. The rock climbing system includes a climbing wall, a main control unit, a control terminal, and a plurality of climbing holds. The main control unit includes a circuit board containing a microcontroller unit (MCU). The climbing hold circuit board and the main circuit board are electrically connected. The control terminal and the main control unit are electrically connected. When the climbing hold is being touched, the conductive film and the static electricity capacity of human body combine to cause a change in electrostatic capacity. The climbing hold circuit board can detect such a change instantaneously and send a status signal to the control terminal. Analysis can be performed by monitoring the status of every climbing hold.