The invention discloses a joint track type travel mechanism, which relates to the technical field of vehicles and robots. To solve low climbing obstacle capability and other problems, the following technical proposal is presented: a joint track type travel mechanism includes a vehicle body (8) and a circuit, and is characterized in that the joint track type travel mechanism also includes four track legs (2), a swing arm, two synchronous belts (10), two sets of drive worm and worm wheel (16), four sets of swing arm worm and worm wheel (17), two drive transmission shafts (5), four swing arm transmission shafts (7), two drive motors (15), four swing arm motors(9), four swing arm driving gears (6), two front synchronous pulleys (2), two rear synchronous pulleys (11) and two rotational shafts (13). The invention has the advantages that a travel mechanism with distinctive style and structure is provided, which has strong climbing obstacle capability, can independently, flexibly and quickly climb the stairs and terrace depending on the mechanical and structural characteristics of the travel mechanism, without manual interference.