Disclosed is a four-in-one on-line monitoring and constant-temperature heating integrated system of a plush type for a bioartificial liver. The system comprises a blood input port (24), a blood pump (3), an arterial pot (4), a four-in-one bioreactor (5), a venous pot (6) and a blood feedback port (7) connected in sequence. The four-in-one bioreactor (5) comprises a constant-temperature water tank (2) and a three-in-one bioreactor (1) provided therein. A three-in-one bioreactor (1) comprises a cavity (1.4), and a first partition (1.5) and a second partition (1.6) arranged in the cavity (1.4). The first partition (1.5) and the second partition (1.6) divide the cavity (1.4) into three independent spaces, including a plasma separator (1.1), an oxygenator (1.2) and a reactor (1.3), from left to right in sequence. The constant-temperature water tank (2) comprises a water tank shell (2.1), and a hot water inlet (2.2) and a hot water outlet (2.3) arranged on the water tank shell (2.1). The advantageous effects are as follows: after blood enters the plasma separator (1.1), plasma sequentially enters the oxygenator (1.2) and the reactor (1.3), thereby reducing unnecessary pipelines； an appropriate metabolic environment can be provided for cells, thereby ensuring cell viability； and an effective cell filling volume is increased, thereby ensuring uniform transverse distribution of cells.L'invention porte sur un système de surveillance en ligne et de chauffage à température constante de luxe pour un foie bioartificiel. Le système comprend un orifice d'entrée de sang (24), une pompe de sang (3), un pot artériel (4), un bioréacteur (5), un pot veineux (6) et un port de retour sanguin (7) tous reliés de manière séquentiel. Le bioréacteur (5) comprend un réservoir d'eau à température constante (2) et un bioréacteur tridimensionnel fait d'une cavité (1.4), d'une première cloison (1,5) et d'une seconde cloison (1,6). La première cloison (1,5) et la seconde cloison (1,6) divisent la ca
