This is a prospective, clinical study. This study is to collect and analyze data of radiomics of primary site or metastasis of colorectal cancer aiming to precisizing preoperative diagnosis and long-term prognsis evaluation.

Inclusion Criteria:

• Patients with pathologically confirmed colorectal cancer
• Male or female aged 18-75 years old on the day of signing informed consent.
• Patients who received imageological examination of primary or metastasis
• Patients who received surgical resection of primary or metastasis
• Patients must have a performance status of ≤1 on the ECOG Performance Scale.
• Colorectal cancer is the only malignant tumor
• Written informed consent must be obtained from patient or patient's legal representative and ability for patient to comply with the requirements of the study

Exclusion Criteria:

• Patients received adjuvant treatment prior to imageological examination
• Tis stage patients
• Paitents who diagnosed with malignant disease within 5 years.
• Patients with a history or current evidence of any condition or abnormality that might confound the results of the study, interfere with the patient's participation for the full duration of the study, or is not in the best interest of the patient to participate, in the opinion of the Investigator.

Patients received enhaced CT or MRI test must have baseline evaluations performed prior to the study and must meet all inclusion and exclusion criteria. In addition, the patient must be thoroughly informed about all aspects of the study, including the study visit schedule and required evaluations and all regulatory requirements for informed consent.