A garage at a property on Station Road, North Thoresby, was burgled overnight on Tuesday (November 17).
Entry was gained via a window on the garage, and there was also an attempt to force the door.
It has not yet been confirmed what has been taken, but it is believed to be fishing rods and other fishing items.
The residents were woken at around 3am by their dog barking, which may have been when the burglary occurred.
If you have any information about the incident, or saw anyone acting suspiciously in the area, call Lincolnshire Police on 101 and quote incident number 83 of November 18.
Alternatively, call Crimestoppers on 0800 555 111.