Objective This study was designed to observe the impact of cigarette cessation on anxiety and depression in patients with coronary heart disease (CHD).Methods A total of 690 cigarette smoking patients with CHD identified by coronary angiography (CAG) were included and analyzed in the study.The mental state were scored with Hamilton anxiety (HAMA) and depression (HAMD) scale both on admission and at 6-month follow-up.The patients were divided into two groups based on the cigarette cessation.The score of mental state between the two groups were compared.The patients were treated with percutaneous coronary intervention (PCI),coronary artery bypass grafting (CABG),or medicine therapy (MT).Results The clinic data and score of mental state were similar at the time of admission (HAMA:10.66±5.53 vs 11.09 ±5.61,P =0.311;HAMD:29.81 ± 10.13 vs 28.94 ± 10.22,P =0.266 4) between the two groups.After 6 months,the proportions of subjects in smoking cession group with anxiety (24.2％ vs 32.3％,P ＜0.05),depression (18.0％ vs 27.5％,P ＜0.05),and anxiety and depression (7.0％ vs 16.2％,P ＜0.001) decreased significantly compared with those in smoking group irrespective of the treatment strategy.Both the HAMA and HAMD scores were lower in smoking cessation group (HAMA:9.83±3.40;HAMD:24.91 ±7.90) than in smoking group (HAMA:10.98 ±4.87;HAMD:27.70 ± 11.16) (all P ＜ 0.001).Conclusions Smoking cessation is good for the relief of anxiety and depression in CHD patient.