Interventional therapies including chemotherapies and radiotherapies are the most preferred treatment for liver cancer. However, these therapies have adverse effects. Therefore, careful care is required to relieve these adverse effects. The objectives of this study were to evaluate the quality of life, pain, anxiety, depression, adverse effects, and satisfaction of patients with liver cancer who received pre- and post-operative comprehensive nursing care against those of patients who received conventional nursing care. Patients with liver cancer who underwent surgeries and interventional therapies for liver cancer received pre- and post-operative comprehensive nursing care (CMN cohort, n = 105) or conventional nursing care (CNN cohort, n = 135), or did not receive any kind of nursing care (NNC cohort, n = 175). Before the non-treatment intervention(s) (BL), none of the patients had absent post-operative pain, all patients had mild or moderate anxiety and depression, and patients had ≤70 overall quality of life score. In the NNC cohort, a few of the patients reported being completely dissatisfied with overall personal satisfaction, and anxiety, depression, and overall the quality of life of patients were clinically worse during the follow-up period generally after completion of all doses of chemo radiotherapies (EL) as compared to BL. Hospital stays due to surgery, visual analog scale (VAS) score, Zung Self-rating Anxiety Scale score, the Self-rating Depression Scale score, and rehospitalization due to any reason(s) in follow-up were fewer and overall quality of life score and overall personal satisfaction score were higher for patients of the CMN cohort than those of patients at BL and those of patients of the CNN and the NNC cohorts at EL (P < .05 for all). Fever, bleeding, urinary retention, gastrointestinal disturbance, and hepatic and renal impairments reported in patients of the NNC cohort. Fever, bleeding, and urinary retention reported in patients of the CNN cohort (P < .05 for all). Nursing non-treatment intervention(s) is necessary for liver cancer patients after surgery, in the follow-up, and between 2 doses of chemoradiotherapies. Pre- and post-operative comprehensive nursing care relieves postoperative pain, psychological burden and improves quality of life in the follow-up period in patients who underwent surgeries and interventional therapies for liver cancer (Level of Evidence: IV; Technical Efficacy: Stage 5).