Inclusion Criteria:  Patients aged 18 years or older; Be able to read Chinese and use a mobile phone; Histologically or cytologically confirmed solid tumor; Diagnosed chronic cancer pain Could understand the study process and evaluation, agreed to participate in the trial, and signed the informed consent form.  Exclusion Criteria:  Illiterate person; Incompetence; Inability to complete the pain assessment; Participation in any other therapies or other study protocols that may have an impact on pain intensity, which were the main outcomes of this study;