Document and Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2017
Apr. 08, 2019
Jun. 30, 2017
Document And Entity Information      
Entity Registrant Name Blow & Drive Interlock Corp    
Entity Central Index Key 0001586495    
Document Type 10-K    
Document Period End Date Dec. 31, 2017    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status No    
Entity Filer Category Non-accelerated Filer    
Entity Small Business Flag true    
Entity Emerging Growth Company false    
Entity Ex Transition Period false    
Entity Shell Company false    
Entity Public Float     $ 2,742,645
Entity Common Stock, Shares Outstanding   30,211,875  
Trading Symbol BDIC    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2017