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Background The multi-site practice (MSP) policy has been practiced in China over 10 years. This study aimed to investigate the safety and feasibility of performing laparoscopic surgery for colorectal cancer (LSCRC) and gastric cancer (LSGC) under the Chinese MSP policy. Methods We collected and analysed the data from 1,081 patients who underwent LSCRC or LSGC performed by one gastrointestinal surgeon in his original hospital (n = 573) and his MSP institutions (n = 508) between January 2017 and December 2020. Baseline demographics, intraoperative outcomes, post-operative recovery, and pathological results were compared between the original hospital and MSP institutions, as well as between MSP institutions with and without specific competence (surgical skill, operative instrument, perioperative multi-discipline team). Results In our study, 690 patients underwent LSCRC and 391 patients underwent LSGC. The prevalence of post-operative complications was comparable for LSCRC (11.5% vs 11.1%, P = 0.89) or LSGC (15.2% vs 12.6%, P = 0.46) between the original hospital and MSP institutions. However, patients in MSP institutions without qualified surgical assistant(s) and adequate instruments experienced longer operative time and greater intraoperative blood loss. The proportion of patients with inadequate lymph-node yield was significantly higher in MSP institutions than in the original hospital for both LSCRC (11.5% vs 21.2%, P Conclusion For an experienced gastrointestinal surgeon, performing LSCRC and LSGC outside his original hospital under the MSP policy is safe and feasible, but relies on the precondition that the MSP institutions are equipped with qualified surgical skills, adequate operative instruments, and complete perioperative management.