A cross sectional observational study was done to see the staging and grading of urinary bladder tumor along with their histopathological correlation at the Department of Pathology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka. The study was done during the period of July 2006 to June 2007 and total 150 cases were included those were clinically suggestive and cystoscopically or sonographically suspected cases of bladder tumor. Size of bladder, length of ureters, other organs present; tumor characteristics: size (including thickness), location extent of invasion, shape (papillary, ulcerated), multifocal lesion and appearance of non-neoplastic mucosa, thickness of bladder wall away from tumor were observed. Total 145 samples were collected by TURBT and 5 were by cystectomy. Mean age of the study patients was 58.5 years and 95.33% of them were male. Histopathologically 95.33% were papillary urothelial carcinoma, 2.66% were adenocarcinoma, 1.33% was squamous cell carcinoma and 0.66% were carcinosarcoma. Among 150 cases 72 (50.34%) bladder tumour were of high grade and 71 (49.65%) were low grade. In 7 (4.66%) cases grading were not done because they were other than papillary urothelial carcinoma. Staging were done in 93 cases and in remaining 57 cases staging was not possible due to absence of muscularis propria. 32 (21.33%) cases were stage T2, 31 (20.66%) cases T1 and 4 (2.66%) were in stage Ta. Overall findings of the cross sectional Bangladeshi population was almost similar to other developing and developed countries.