Charity cash and a mobile phone were stolen from a house on Canwick Road in Lincoln, sometime between 7pm on January 14 and 1am on January 15.
An offender broke into a house through a window at the back. A charity box containing about £100 worth of coins and a Blackberry phone were stolen.
Offenders also took two bottles of whiskey and a bottle of wine.
Police are appealing for anyone who saw any suspicious activity in the area to get in touch with them as soon as possible.
Call Lincolnshire Police with information on 101, or call independent charity Crimestoppers anonymously on 0800 555 111.