An immovable price checker (1) with an angle-adjustable scanner is installed on a wall for scanning barcodes of an article and includes a base (10), a scanner (20), a processor (30), a displayer (40) and a pivoting means (50). The base (10) is fixed to the wall. The scanner (20) is connected to the base (10) for scanning the barcodes of the article. The processor (30) is electrically connected to the scanner (20). The displayer (40) is fixed to the base (10) and electrically connected to the processor (30). The displayer (40) is configured to display data processed by the processor (30). The pivoting means (50) is connected between the base (10) and the scanner (20). The scanner (20) is rotatable with respect to the base (10) by using the pivoting means (50) as a center of rotation to thereby adjust the angle of the scanner (20). Thus, the convenience and practicability of the present invention are improved greatly.