Hi Mohamed Faiez,
It is not possible to export any IDQ mappings from the Developer Tool to Cloud DQ as of today. You will have to develop Mappings in cloud to implement the same logic.
You can create the following assets in Cloud Data Quality: Cleanse, Deduplicate, Parse, Rule Specification, and Verifier. Add the assets to a Cleanse transformation, Deduplicate transformation, Parse transformation, Rule Specification transformation, and Verifier transformation respectively in Data Integration. You can also create dictionaries in Data Quality that other data quality assets can use. A dictionary is a table of reference data that a mapping can read to evaluate the accuracy or usefulness of source data.