Background: Colorectal surgery is associated with significant postoperative pain which are associated with significant side effects. Objective: To investigate the effect of intravenous infusion of lidocaine compared with ultrasound-guided transverse abdominal plane (TAP) block on the quality of postoperative recovery and analgesic effect in patients undergoing colorectal surgery. Methods: In this prospective study, patients who chose to have colorectal operations for a variety of reasons are included. Patients were split into two groups and given either a transverse abdominal plane block (TAP) using ultrasound-guided bilateral administration of 0.25% ropivacaine or lidocaine (LIDO, a loading dose of 1.5 mg/kg). At 24 hours following surgery, the Quality of Recovery-40 (QoR-40) was evaluated. Use of remedial analgesics within 24 hours after surgery, consumption of propofol and remifentanil, numeric rating scale (NRS) pain scores at rest at 0 to 24 h postoperatively, and adverse events were also noted. Results: These two groups' demographic profiles were equivalent. The QoR-40's numerous components did not differ between the LIDO and TAP groups. In comparison to the TAP group, the patient in the lidocaine group had a decreased resting NRS score evaluated at 1 h, 2 h, and 4 h postoperatively, but not at 8 and 24 h (P 0.05). Conclusion: For patients who underwent colorectal surgery, intravenous infusion of lidocaine and ultrasound-guided TAP block both offered satisfactory postoperative recovery and postoperative analgesia, although intravenous infusion of lidocaine was superior to TAP block at 12 and 24 hours after surgery.