Got the Answer. Setup - > Develop -> Visualforce Pages -> Your visualforce page -> Click Edit -> Check Available for Salesforce mobile apps and Lightning Pages checkbox -> Save After this you can see your button appear on Salesforce1 action on the layout
Setup - > Develop -> Visualforce Pages -> Your visualforce page -> Click Edit -> Check Available for Salesforce mobile apps and Lightning Pages checkbox -> Save
After this you can see your button appear on Salesforce1 action on the layout