It's possible to auto save?

I am Developing Medical Modules, It’s storing large data, so It’s possible to autosave?

Not sure to understand what “autosave” means. But for bulk recording, you can use editable list. Each line is saved automatically when moving to another (or create a new one).
Otherwise, you can use the shortcut CTRL+s to save the current record.

my form contain number fields like char, float text …etc
every time i enter data after i pressing save button.
i don’t need any human interaction to click a save button.
the form save automatically no need to click save button

As long as there are no “undo” feature, we will not have such behavior.
Explicit save is not that bad and the client warns you if you try to close a form with changes not saved.