The invention discloses an arrangement method and system of a virtual keyboard. The arrangement method of the virtual keyboard includes the steps that the virtual keyboard is initialized when a keyboard interface is entered, the virtual keyboard is initialized after characters are input, and on the virtual keyboard, two characters adjacent to the input character are set to be a first character and a second character so that the first character, the input character and the second character can be arranged according to the first scheduled rule. According to the technical scheme, the virtual keyboard is initialized when the keyboard interface is entered, the virtual keyboard is initialized again after the character is input each time, and meanwhile whether the input character is right or not is confirmed; therefore by means of the technical scheme of the arrangement method and system, on the premise of guaranteeing input safety, whether the character input in the previous time is correct or not can be determined according to the character arrangement law of the virtual keyboard after the character is input.