The invention relates to a receipt pressing and rolling device of a receipt printer and the portable receipt printer provided with the same and a use method. The receipt pressing and rolling device is used for receipts of an expressway, and comprises a receipt pressing assembly and a receipt rolling assembly. The receipt pressing assembly comprises a front receipt pressing assembly and a rear receipt pressing assembly which are respectively provided with a front receipt pressing wheel, a rear receipt pressing wheel, a front left rocker, a rear left rocker, a front right rocker, a rear right rocker, a front left tensional spring, a rear left tensional spring, a front right tensional spring, a rear right tensional spring, a front rocker shaft and a rear rocker shaft. The receipt rolling assembly comprises a rear rolling wheel, a front protruding tooth rolling shaft and an upper rolling shaft support, wherein an upper rolling shaft is arranged on the upper rolling shaft support. The device can solve the installation problem of the receipts in the prior art, enables the receipts to be printed in a mobile mode without the need that the receipts are placed on a table face, and is suitable for the receipts of the expressway, namely, the installation and mobile and portable printing problems of punched receipts with lengths of 89mm. The device is reasonable in structure, small in size, convenient and stable in communication connection, high in operation intelligence degree, convenient to use and carry and long in service life, and can meet requirements of high efficiency and convenience in charging management work of the expressway.