The invention discloses a crane and a working condition determining method and device thereof. The working condition determining method comprises the steps that according to vehicle state informationand vehicle disposition information input by a user, the working condition type corresponding to the vehicle state information and vehicle disposition information is selected; and according to liftingdemand information and screening condition input by the user, working conditions in the working condition type are screened, and the recommended working condition is determined. According to the crane and the working condition determining method and device thereof, working condition information of the crane is presorted according to different combining forms of a main arm, an auxiliary arm and asuperlift of the crane, thus a working condition screening condition is provided, the automatic query scope can be narrowed effectively, and the working condition automatic query efficiency is improved.