A continuous asphalt mixture production plant based on a double-shaft forced mixing, comprising: a cold aggregate bin, a continuous aggregate conveying and metering system, a drying drum, an aggregate elevator, a double-shaft continuous mixing host, a continuous asphalt metering and conveying system, a continuous powder conveying and metering system and a finished product bin; wherein the cold aggregate bin is connected with a feeding end of the drying drum through the continuous aggregate conveying and metering system; a discharging end of the drying drum is connected with the double-shaft continuous mixing host through the aggregate elevator; characterized in that the double-shaft continuous mixing host comprises a first double-shaft mixing cylinder and a second double-shaft mixing cylinder connected in series; the first double-shaft mixing cylinder is provided with an aggregate inlet, an asphalt inlet, a powder inlet and a first discharging port, and the second double-shaft mixing cylinder is provided with a mixture inlet and a second discharging port; the aggregate inlet, the asphalt inlet and the powder inlet are respectively connected with an outlet of the aggregate elevator, the continuous asphalt metering and conveying system, and the continuous powder conveying and metering system correspondingly; and the first discharging port is interfaced with the mixture inlet, and the second discharging port is connected with the finished product bin; wherein the first double-shaft mixing cylinder and the second double-shaft mixing cylinder are both mounted obliquely, with one end of the first double-shaft mixing cylinder provided with the aggregate inlet being lower than an other end of the first double-shaft mixing cylinder provided with the first discharging port, and one end of the second double-shaft mixing cylinder provided with the mixture inlet being lower than an other end of the second double-shaft mixing cylinder provided with the second discharging port. a cold aggregate bin, a continuous aggregate conveying and metering system, a drying drum, an aggregate elevator, a double-shaft continuous mixing host, a continuous asphalt metering and conveying system, a continuous powder conveying and metering system and a finished product bin; wherein the cold aggregate bin is connected with a feeding end of the drying drum through the continuous aggregate conveying and metering system; a discharging end of the drying drum is connected with the double-shaft continuous mixing host through the aggregate elevator; characterized in that the double-shaft continuous mixing host comprises a first double-shaft mixing cylinder and a second double-shaft mixing cylinder connected in series; the first double-shaft mixing cylinder is provided with an aggregate inlet, an asphalt inlet, a powder inlet and a first discharging port, and the second double-shaft mixing cylinder is provided with a mixture inlet and a second discharging port; the aggregate inlet, the asphalt inlet and the powder inlet are respectively connected with an outlet of the aggregate elevator, the continuous asphalt metering and conveying system, and the continuous powder conveying and metering system correspondingly; and the first discharging port is interfaced with the mixture inlet, and the second discharging port is connected with the finished product bin; wherein the first double-shaft mixing cylinder and the second double-shaft mixing cylinder are both mounted obliquely, with one end of the first double-shaft mixing cylinder provided with the aggregate inlet being lower than an other end of the first double-shaft mixing cylinder provided with the first discharging port, and one end of the second double-shaft mixing cylinder provided with the mixture inlet being lower than an other end of the second double-shaft mixing cylinder provided with the second discharging port.