Background: All children all most vulnerable group in the community society certain disease affect them & result in increased helminthes infestation with bodily function, cause irritation some destroyed the host tissue & release toxin into the serum stream. Worm infestation are long term disease that produce few symptoms in their early stages & sometimes serious effects well developed stage or may be quite felt of time.

Objectives: 1. To assess the level of knowledge regarding worm infestation among mother so funder five children.

2. To assess the effectiveness of structured teaching programme on knowledge regarding worm infestation among mothers of under five children.

3. To determine the association between post test knowledge score with selected demographic variables among mother so funder five children.

Material and Method: The research was evaluative approach was used to conduct the study. A pre experimental research design one group pre test and post-test was used for the study. The investigator has used convenient sampling technique for selecting 30 mothers of under five children. A Structured knowledge questionnaire was prepared to assess the knowledge of the samples.

Result: The mean value of pre-test knowledge score was 12.3 and standard deviation was 5.239 while mean value of post-test knowledge score was 21.63 and the Standard Deviation (SD) was 4.246. The calculated paired’ test value was 7.01 which higher than the tabulated 't' value 2.04, which indicates the increased knowledge. Association of selected demographic variables with Post-test knowledge score was computed using Chi Square test and it showed that there is no association between them. Data demonstrated that there was significant increase in the knowledge  of worm infestation after implementation of health education intervention programme.

Conclusion: Hence it is proved that health education intervention programme was more effective in improve the knowledge regarding worm infestation among mothers of under five children.