The invention relates to a receipt data recognition device and a method. The device gathers turnover management data accurately and efficiently from different shops of tenants to realize the high speed and efficiency of the tenant turnover management business. Aiming at the identification characters read from the receipt image, a receipt data extraction part (141) extracts the characters according to the project name character string in the receipt registered in different definition data of each shop and the position data of the amount project in the receipt. A slant detection part (142) detects the slant identification characters according to the position data of the extracted identification characters. After the identification characters are detected to be slant, a slant rectification part (143) rectifies the position data of the corresponding amount project. A receipt data specific assignment part (144) extracts the identification characters representing the amount project through using the rectified position data according to the identification characters and the position data. A turnover management data generating part (15) outputs or stores the identification result data according to the identification characters consistent with the project name and the identification characters representing the amount project.