OBJECTIVES:: The study was planned to evaluate the influence of silicon dust on lung function between stone crushing workers and general population. METHODS:: The one hundred and six male study respondents age of 20 years and above were considered, out of which 53 were from stone crushing workers and 53 were from general population randomly selected from Quetta district, Pakistan. Respondents were divided into two groups; group-I (stone crushing workers) and group-II (general population). Data was collected by self-designed performa and Spirometer. The forced vital capacity (FVC), forced expiratory volume in one second (FEV1), peak expiratory flow rate (PEFR), ratio of FEV1 and FVC (FEV1/ FCV %) and forced mid expiratory flow (FEFwere calculated and explored. The frequency, percentage and descriptive statistical measurements were observed for both groups by using SPSS 22. Friedman’s two-way analysis of variance by rank (1) test was applied and Sig level (P<0.05) was observed. RESULTS:: The mean value of FVC in stone crushing workers was (61.3%) and mean value of FVC in control group was (69.2%). The FEV1 mean value for the stone crushing workers was (70.0%) and in control group the mean value was (77.4 %). The mean value for PEFR was (77.2%) in stone crushing workers but the mean value for PEFR in control group was (86.1%). The mean value for FEV1/FVC ratio was (114.5%) in stone crushing workers and in control group mean values was (112.2%). The mean value for FEFwas (104.6%) in stone crushing workers and the mean value for FEFin control group was (108.5%). CONCLUSIONS::  This study was concluded that no significant difference found between silicon dusts exposed group and non-exposed group, both the groups showed the slightly restrictive lung defects but the non-exposed group was bit better than the silicon exposed group.