Hi,

Once you've browsed for objects, like: for emp in self.pool.get('hr.employee').browse(cr,uid,emp_ids,context=context): -in your code, then you do NOT need another search like you have: pay_ids = self.pool.get('hr.payslip').search(cr,uid,[('employee_id','=',emp.id)],context=context), instead you should iterate over objects directly.

def load_employee(self,cr,uid,ids,context=None):
    result = {}
    total = 0.00
    emp_ids = self.pool.get('hr.employee').search(cr,uid,[])
    netsvc.Logger().notifyChannel("OUT PUT ", netsvc.LOG_INFO, 'EMPL LIST ....' + str(emp_ids))

    for emp in self.pool.get('hr.employee').browse(cr,uid,emp_ids,context=context):
        # -  pay_ids = self.pool.get('hr.payslip').search(cr,uid,[('employee_id','=',emp.id)],context=context)
        # Let's say one2many fields for "hr.payslip" in the class  "hr.employee" is named as: 'payslip_ids',  then:
        # (Please adapt it to your case)
        for pay in emp.payslip_ids:
            for pay_line in pay.line_ids:
                # + ...

        netsvc.Logger().notifyChannel("OUT PUT ", netsvc.LOG_INFO, 'ID ID ID ID :::::' + str(emp.id))
        # - netsvc.Logger().notifyChannel("OUT PUT ", netsvc.LOG_INFO, 'PAY :::::' + str(pay_ids))
        result={"value":{
            'employee_id' : payslip_list
        }}

return result

Try  approach like this.

regards,