Abstract: Objective To identify the factors impacting on not arriving at TB dispensaries (TD) of TB cases reported and referred by non-TB control institutions (NTI) in Baoan district and Longgang district of Shenzhen, and provide the evidence for developing policies to strengthen PPM. Methods During May to July 2010, 60 cases from Baoan and Longgang who arrived at TD and 60 cases who were reported in the same districts but didn’t arrived at TD were recruited to receive questionnaire interviews as control and case groups respectively. Chi-square test was used for analysis, and the difference had statistical significance if P<0.05. Results In non-arrival group, physicians in NTI did not issue referral sheets to 13 cases (21.7%, 13/60), while in arrival group the number was 5 cases (8.3%, 5/60), and the difference had statistical significance (χ²=4.18, P<0.05). The proportion of patients knowing TD was the professional institute for tuberculosis diagnosis and treatment in non-arrival group (85.0%, 51/60) was less than that from arrival group of (98.3%, 59/60), with statistical significance (χ²=6.98, P<0.01). The proportion of cases knowing the place of TD (73.3%, 44/60) in non-arrival group was significantly lower than arrival group (98.3%, 59/60) (χ²=15.42, P<0.01). Less patients trusted the TD’s capability of diagnosis and treatment (60.0%, 36/60) in non-arrival group than arrival group (90.0%,54/60) (χ²=14.4, P<0.01). The significant difference also existed in the number of patients knowing curative effect of TB drugs provided by TD (30.0%,18/60 vs 80.0%,48/60, χ²=30.3, P<0.01). More proportion of patients in non-arrival group reported inconvenient transportation (90.0%, 54/60 vs 53.3%, 32/60). The difference was statistically significant (χ²=19.86, P<0.01). Conclusion The major factors affecting the arrival rate in Baoan district and Longgang district of Shenzhen were physicians in NTI not issuing referral sheets to cases, inadequate publicity of national free policy on tuberculosis and institutions themselves by TD, and inconvenient transportation.