The invention discloses an anti-roll adjustable hydro-pneumatic suspension hydraulic
system which comprises a suspension
hydraulic control unit and an oil pipeline which are arranged on each axle, each suspension
hydraulic control unit comprises two groups of suspension control mechanisms on the left side and the right side respectively, and each suspension control mechanism comprises an oil cylinder, a valve piece, a pipeline and an energy accumulator; a rod cavity of an oil cylinder on one side of each suspension
hydraulic control unit is communicated with a rodless cavity oil way on the other side of the same unit through a valve piece and a pipeline, and a rodless cavity of each oil cylinder is connected with an energy accumulator of the suspension control mechanism in the same set through a valve piece. The stability of speed control when the suspension oil cylinder bears large load and descends is achieved; meanwhile, the suspension oil cylinder can bear the load borne by a suspension
system when a hydraulic
system does not act, the hydraulic system is prevented from being overloaded, so that the safety of the hydraulic system and the whole vehicle is protected; vehicle posture adjustment and speed adjustment such as vehicle body lifting, front-back pitching, left-right inclining and vehicle body leveling can be achieved.