The invention discloses a large-displacement adjustable continuous self-supporting fracturing technology research device. The device comprises a visual flow simulation unit, a visual clamping temperature control unit, a fluid supply unit, a pressure control and flow control unit, a self-supporting fracturing fluid and channel fracturing fluid separator and an image acquisition unit; the visual flow simulation unit is used for simulating a flow distribution process and a curing process of self-supporting fracturing fluid in a perforation zone and a formation fracture space; the visual clampingtemperature control unit is used for heating the visual flow simulation unit to form self-supporting solid phase; the fluid supply unit is used for outputting the self-supporting fracturing fluid andchannel fracturing fluid; the pressure control and flow control unit is used for providing the self-supporting fracturing fluid and the channel fracturing fluid to the visual flow simulation unit; theself-supporting fracturing fluid and channel fracturing fluid separator is used for separating mixed fluid flowing from the visual flow simulation unit and conveying the separated self-supporting fracturing fluid and the channel fracturing fluid to the fluid supply unit; and the image acquisition unit is used for shooting the flow distribution process and the curing process of the self-supportingfracturing fluid in the visual flow simulation unit. The large-displacement adjustable continuous self-supporting fracturing technology research device can visually observe the flow and phase changephenomena of a self-supporting fracturing fluid system in the simulated perforation zone and the simulated fracture.