Android projection screen definition setting method, computer readable storage medium and equipment

The invention provides an Android screen projection definition setting method, which comprises the following steps: displaying a preset first interface to a screen projection system user at a mobile terminal, the first interface comprising a screen projection control and a setting control; the user enters a second interface after operating the setting control, the second interface displays a preset bit rate numerical value setting area used for inputting bit rate numerical values preset by the user, and the input bit rate numerical values all correspond to the number of bits occupied by the transmitted image; setting a bit rate value and then returning to the first interface; and the user operates the screen projection control, the mobile terminal establishes connection with the target terminal and enters a third interface, and third interface data is displayed on the screen projection interface. By adjusting the bit rate value, the proper definition of the screen projection interface is set, the delay is imp