Funding, which will need to be confirmed by the county council's policy committee will come from the authority's 'good housekeeping fund'.
The department will continue to offer a broad programme of support for families and individual children in need and at risk but has decided to give more emphasis to the prevention of abuse.
The move comes after recent national research indicated that more families could be helped if social services directorates were able to switch the emphasis of their work to prevention and promotion.
Director of social services (designate) Liz Railton, said the department's top priority would continue to the the provision of a quality child protection service and the new focus was part of that commitment.
'It is essential that social services provides effective services both to protect children at risk and to help children and families in need.
'With the help of this cash injection I am confident that we can develop our services and give help to families when they need it as well as providing protection for those children considered at risk.'
Members of the social services committee will consider the request when it meets on January 14. The department of health, which commissioned the national research, has already indicated its backing for the refocussing package being proposed in Cambridgeshire.