Safe ladder system for passengers to get on and off bus

The invention discloses a safe ladder system for passengers to get on and off a bus. The safe ladder system comprises two pressure detecting devices arranged at a bus station, safe ladder devices and a processor connected with the two pressure detecting devices and the safe ladder devices. The pressure detecting devices are used for detecting the values of pressure borne by the devices and comparing the detected pressure values with a preset threshold value in the processor. When the pressure values detected by the two pressure detecting devices are both larger than or equal to the preset threshold value, the processor controls the safe ladder devices to start and to be in a working state. When the pressure value detected by any pressure detecting device is smaller than the preset threshold value, the processor controls the safe ladder devices to shut down and to be in a non-working state. By means of the safe ladder system, safety of passengers getting on and off the bus can be improved, people can have an o