Hi my question is my employment visa is in dubai...

We would like to inform you that It is not possible to transfer residence from Emirate to another emirate within the state until after obtaining a new employment contract in the Emirates to which the transfer is sought. After obtaining the contract of employment and applying for residence, the General Directorate of Residence shall examine the application and issue a decision to accept or reject the application. In other words, the transfer from one residence to another depends on the decision of the general administration.
Finally, we point out
To that you cannot work outside the emirate that granted you the residence, and if the worker violates this, the residence can be canceled and the worker can be deported outside the Emirates.

If your inquiry is about that you are working on a fixed-term contract, and you want to be independent in order to join another job:
According to the UAE Labor Law, a worker cannot terminate a fixed-term contract before end of its term.
If the worker terminates a fixed-term contract before the end of its term, compensation must be paid to the employer which must not exceed one and a half months' salary.
Moreover, terminating a fixed-term contract before the end of its term is considered illegal, and the employer can impose a ban against the worker for a period of one year.
We recommend you to negotiate with your employer in order to obtain a no-objection clearance to move to another company, so that to avoid a ban.
The UAE Labor Law, in regards of your inquiry:
Article 116
Where a contract is revoked by the worker for reasons other than those specified in Article (121), he shall be required to compensate the employer for any damage the latter sustains as a result, provided that the amount of compensation shall not exceed half a month wage for three months or for the remaining period of the contract, whichever is shorter, unless otherwise stipulated in the contract.