The invention relates to the field of paper portable manufacturing, in particular to a chain type paper portable forming machine and a portable forming method. The chain type paper portable forming machine comprises a transmission device, a transportation trolley, an impressing device, a limiting plate, a folding device, a push plate, an installing plate and a fixing plate; and the transmission device is arranged on one side face of the fixing plate, the transportation trolley runs on a first track of the transmission device, the impressing device is arranged in a closed loop of the first track of the transmission device, the limiting plate is arranged on one side of the impressing device, and the push plate is arranged on one side of the folding device. By means of the chain type paper portable forming machine and the portable forming method, the simple mechanical structure and the relatively-simple operation steps are adopted, and portable manufacturing can be effectively completed.