NINE four-year-olds were suspended from Kirklees schools for bad behaviour last year.
A further 38 children aged five or six were also sent home for several days.
The tiny tearaways were among 2,837 youngsters who were handed fixed-term exclusion orders.
A further 30 children were permanently expelled from their schools because of problems.
But the total was the lowest since 1999 and a report out today praises improved behavioural standards and the methods for tackling problem children.
A council spokesman said: "Kirklees schools, supported by the Children and Young People Service, are working together to continue to develop alternative ways of managing behaviour without resorting to exclusion.
"They have tried alternatives and have seen standards improve".
In a report Lynn Nickson, principal improvement manager, said: "This has resulted in a considerable reduction in the number of exclusions over five days.
"In Kirklees the numbers of exclusions has reduced from 364 in 2006/07 to 79 in the academic year 2008/09.
"In the few cases where exclusions are longer than five days schools have usually made arrangements with a neighbouring school to provide education for the excluded pupil".
Permanent exclusions means the pupil is taken off roll permanently and further education placement needs to be sought.
The study shows that the number of pupils permanently excluded dropped to 30 in the last academic year from 44 in the previous 12 months.
The majority of those came in the high school section, with only two pupils expelled from primary schools last year, compared to nine in the previous year.
Figures show that boys’ behaviour is far worse than that of girls. Eight out of 10 of the children subjected to either suspension or expulsion were boys.
Older children also proved to be better behaved, with only a handful of students excluded once they reached Years 10 and 11 in the local high schools and colleges.
Ms Nickson said: "Permanent exclusions from Kirklees schools are consistently low in national comparison and this was maintained with 44 permanent exclusions in 2007/08, putting Kirklees in position 40 out of 150 local authorities.
"This already low number of permanent exclusions was reduced further by over 30% in the academic year 2008/09 to 30 permanent exclusions; the lowest number of permanent exclusions since recording began in 1999".