An inkjet printing apparatus that uses a printing unit (21, 22) for ejecting a first coloring material ink of a first color and a second coloring material ink of a second color whose coloring materials are different in type from the first coloring material ink and a transparent clear ink for fixing at least the first coloring material ink to a surface of a print medium in order to perform printing on the print medium and performs check processing for checking an ejection operation of the clear ink from a print head, the inkjet printing apparatus comprising: a receiving unit configured to receive an instruction to perform the check processing; and a controlling unit (37, 370, 371) configured to cause the printing unit to eject the first coloring material ink, the second coloring material ink, and the clear ink so as to print a check pattern (281 to 283, 101, 201, 202, 61 (a) to 61 (i), 62(a), 62(b)) used for the check processing, in response to the receiving unit receiving the instruction, wherein at the time of printing the check pattern, the controlling unit causes the printing unit to print the check pattern in which the clear ink, the first coloring material ink, and the second coloring material ink are applied to a check pattern forming area of the print medium in the order of the clear ink, the first coloring material ink, and the second coloring material ink, characterized in that, in the check pattern to be used for the check processing, a pattern printed with the first coloring material ink (62a, 282, 401) overlaps with a pattern printed with the second coloring material ink (62b, 283, 402), wherein it is useable for the check processing that, in the check pattern, in a portion in which the first coloring material ink and the clear ink are in contact with each other, the print medium is colored in the second color and the first color in the order of the second color and the first color in a direction from a surface side of the print medium toward a back side of the print medium, and in a portion in which the first coloring material ink and the clear ink are not in contact with each other, the print medium is colored in the first color and the second color in the order of the first color and the second color in the direction from the surface side of the print medium toward the back side of the print medium. a receiving unit configured to receive an instruction to perform the check processing; and a controlling unit (37, 370, 371) configured to cause the printing unit to eject the first coloring material ink, the second coloring material ink, and the clear ink so as to print a check pattern (281 to 283, 101, 201, 202, 61 (a) to 61 (i), 62(a), 62(b)) used for the check processing, in response to the receiving unit receiving the instruction, wherein at the time of printing the check pattern, the controlling unit causes the printing unit to print the check pattern in which the clear ink, the first coloring material ink, and the second coloring material ink are applied to a check pattern forming area of the print medium in the order of the clear ink, the first coloring material ink, and the second coloring material ink, characterized in that, in the check pattern to be used for the check processing, a pattern printed with the first coloring material ink (62a, 282, 401) overlaps with a pattern printed with the second coloring material ink (62b, 283, 402), wherein it is useable for the check processing that, in the check pattern, in a portion in which the first coloring material ink and the clear ink are in contact with each other, the print medium is colored in the second color and the first color in the order of the second color and the first color in a direction from a surface side of the print medium toward a back side of the print medium, and in a portion in which the first coloring material ink and the clear ink are not in contact with each other, the print medium is colored in the first color and the second color in the order of the first color and the second color in the direction from the surface side of the print medium toward the back side of the print medium.