The invention discloses a cross-arm type lifting device which belongs to the technical field of lifting tools. The cross-arm type lifting device comprises a driving unit and a lifting unit. The lifting unit comprises at least one outer arm, at least one inner arm and a rotating shaft. Each outer arm is intersected with a corresponding inner arm, and the rotating shaft is in rotating connection with the inner arm and the outer arm through the intersecting position of the inner arm and the outer arm. When the number of the outer arms is more than one, every two outer arms are parallel to each other. When the number of the inner arms is more than one, every two inner arms are parallel with each other. The driving unit comprises a driving part and a lifting roller which are connected with each other, the lifting roller is located between the inner arm and the outer arm and is in contact with the inner arm and the outer arm, and the lifting roller is driven by the driving unit to move. The cross-arm type lifting device does not slide, can ensure the fixed transmission ratio, transmission is stable, and noise and vibration are small. A production line is conveniently transformed, a structure of a skid is transformed or replaced, the lower main body is basically unchanged, and manufacturing cost is greatly reduced. Operation is stable, the noise is low, a working environment is remarkably improved, maintenance space is large, and maintenance is convenient for workers.